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Finding the Fourth Proportional to 488,678,689.79, 732,036,592.85 and 225,995,042.87

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Solution

The fourth proportional to 488,678,689.79, 732,036,592.85 and 225,995,042.87 is: 338,538,685.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,678,689.79 : 732,036,592.85 = 225,995,042.87 : x
  2. Step 2: Convert to fraction form
    488,678,689.79/732,036,592.85 = 225,995,042.87/x
  3. Step 3: Cross multiply
    488,678,689.79x = 732,036,592.85 × 225,995,042.87
  4. Step 4: Simplify right side
    488,678,689.79x = 165,436,641,178,754,336
  5. Step 5: Solve for x
    x = 165,436,641,178,754,336/488,678,689.79
  6. Step 6: Final answer
    x = 338,538,685.31

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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.