the remainder of the 10 richest people in the world , their country and industries , according to forbes , were : shin kyuk-ho , south korea , candy , real estate , $ 8 billion ; hirotomo takei and family , japan , publishing , real estate , $ 7.8 billion ; kitaro watanabe , japan , real estate , hotels , $ 7 billion-plus ; haruhiko yoshimoto and family , japan , real estate , $ 7 billion ; hans and gad rausing , sweden , liquids packaging , $ 7 billion ; and eitaro itoyama , japan , land , $ 6.6 billion .