One "notable loser", according to the magazine: U.S. President Donald Trump, whose fortune dropped by $400 million to $3.1 billion.
The president has dropped more than 200 spots since past year to No. 766 on the list, where he's tied with more than 20 others. Vietnam's richest woman has an estimated net worth of $3.1 billion, almost three times her wealth when she made her debut appearance past year with $1.2 billion. The Seattle-based businessman's fortune jumped from $39.2bn to $112bn in 12 months, the biggest year-on-year gain ever recorded by Forbes.
Warren Buffett, 87, the world's best known investor - whose stock picks and market commentary are closely followed - is number three on the list with $84bn.
Bill Gates, Microsoft's co-founder and an occasional bridge partner of Buffett's, ranks second on the Forbes list with wealth of $90 billion.
Bernard Arnault - The first member of the list not to come from the USA has a net worth of $72 billion and calls France his home.
Pretty successful year: Overall, the billionaire class did an admirable job since Forbes' 2017 list.
The world's billionaires are worth $9.1 trillion, up 18 percent since a year ago, according to Forbes.
However, it was a slightly poor showing from Thomson compared to the 2017 list when he had reportedly amassed US$27.2 billion. He had been in the top spot for four previous years. Thomas Pritzker's fortune increased by $900 million since last year's ranking, when he and Bluhm were tied for fourth.
French luxury king and LVMH chief executive officer Bernard Arnault ranked 4th with $72 billion along with his family, while Facebook founder Mark Zuckerberg rounded out the top 5 with $71 billion. He's now ranked at number 766, compared to 544 past year.
Among the Indian women on the list, Savitri Jindal and family is the richest with a fortune of United States dollars 8.8 billion.
China has the most newcomers, with 89, followed by 45 newcomers from the USA, 18 newcomers from India and 13 from Germany.