Bill Gates, $76 bln
AP Photo/Gero Breloer
Mexican business magnate Carlos Slim Helu, $72 bln
Spanish fashion executive and founding chairman of the Inditex fashion group Amancio Ortega, $64 bln
American business magnate Warren Buffett, $58.2 bln
American businessman, co-founder of Oracle Corporation Larry Ellison, $48 bln
EPA/JOHN G. MABANGLO
American businessman, chief executive officer of Koch Industries Charles Koch, $40 bln
Koch Industries Inc.
Co-owner (with brother Charles Koch) and an executive vice president of Koch Industries David Koch, $40 bln
AP Photo/Mark Lennihan
Chairman and chief executive officer of the Las Vegas Sands Corporation Sheldon Adelson, $38 bln
EPA/David G. McIntyre
Christy Walton & family, 36.7 bln. Christy Walton is the widow of John T. Walton, one of the sons of Sam Walton, the founder of Wal-Mart
Jim Walton, youngest son of Sam Walton, the founder of world's largest retailer Wal-Mart, $34.7 bln.
AP Photo/Gareth Patterson