Finding the Fourth Proportional to 696,629,973.92, 961,132,938.84 and 395,165,601.07
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Solution
The fourth proportional to 696,629,973.92, 961,132,938.84 and 395,165,601.07 is: 545,205,761.60
Step by Step Solution
- Step 1: Write the proportion equation
696,629,973.92 : 961,132,938.84 = 395,165,601.07 : x - Step 2: Convert to fraction form
696,629,973.92/961,132,938.84 = 395,165,601.07/x - Step 3: Cross multiply
696,629,973.92x = 961,132,938.84 × 395,165,601.07 - Step 4: Simplify right side
696,629,973.92x = 379,806,675,482,481,344 - Step 5: Solve for x
x = 379,806,675,482,481,344/696,629,973.92 - Step 6: Final answer
x = 545,205,761.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.