Does he think that his wealth will make him immortal?
As if his money will make him immortal
thinking his wealth will render him immortal
He thinks that his wealth will make him abide
He thinks/supposes that (E) his property/possession/wealth made him immortal/eternal
Thinking that his wealth will render him immortal
Does he think that his wealth will prolong his stay on earth forever
He thinks that his wealth will make him immortal
He thinks that his riches will keep him alive forever
He thinks that his wealth will make him immortal
He thinks that his wealth will make him last forever