Home / 657,072,000.10-985,608,000.15-398,579,097.70

Finding the Fourth Proportional to 657,072,000.10, 985,608,000.15 and 398,579,097.70

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Solution

The fourth proportional to 657,072,000.10, 985,608,000.15 and 398,579,097.70 is: 597,868,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,072,000.10 : 985,608,000.15 = 398,579,097.70 : x
  2. Step 2: Convert to fraction form
    657,072,000.10/985,608,000.15 = 398,579,097.70/x
  3. Step 3: Cross multiply
    657,072,000.10x = 985,608,000.15 × 398,579,097.70
  4. Step 4: Simplify right side
    657,072,000.10x = 392,842,747,385,688,448
  5. Step 5: Solve for x
    x = 392,842,747,385,688,448/657,072,000.10
  6. Step 6: Final answer
    x = 597,868,646.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.