The youngest among the 400 was 30 - year - old daniel ziff , who shares a . 2 billion inheritance from his father william ziff jr . with his two brothers , ages 34 and 38 . the oldest person on the survey is 94 - year - old max fisher , who made his fortune in oil and steel . " i ' m not a billionaire , " he said 400位富豪中最年轻的是30岁的丹尼尔齐夫，他和现年非别34岁和38岁的两个哥哥继承了其父- it媒体出版业巨头威廉姆齐夫的财产，而丹尼尔获得了其中的12亿。
