Finding the Fourth Proportional to 686,050,538.80, 946,755,737.76 and 372,784,746.28
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Solution
The fourth proportional to 686,050,538.80, 946,755,737.76 and 372,784,746.28 is: 514,446,206.99
Step by Step Solution
- Step 1: Write the proportion equation
686,050,538.80 : 946,755,737.76 = 372,784,746.28 : x - Step 2: Convert to fraction form
686,050,538.80/946,755,737.76 = 372,784,746.28/x - Step 3: Cross multiply
686,050,538.80x = 946,755,737.76 × 372,784,746.28 - Step 4: Simplify right side
686,050,538.80x = 352,936,097,489,995,776 - Step 5: Solve for x
x = 352,936,097,489,995,776/686,050,538.80 - Step 6: Final answer
x = 514,446,206.99
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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.