Suppose Caterpillar, Inc., has 654million shares outstanding with a share price of $ 74.39 command $ 25.58billion in debt. If in three years, Caterpillar has 702million shares outstanding trading for $ 85.13per share, how much debt will Caterpillar have if it maintains a constant debt-equity ratio?

The amount of debt required in three years will be $ ___billion.(Round to two decimal places.)