Home / 625,883,155.20-939,442,613.76-469,894,417.92

Finding the Fourth Proportional to 625,883,155.20, 939,442,613.76 and 469,894,417.92

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Solution

The fourth proportional to 625,883,155.20, 939,442,613.76 and 469,894,417.92 is: 705,305,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,883,155.20 : 939,442,613.76 = 469,894,417.92 : x
  2. Step 2: Convert to fraction form
    625,883,155.20/939,442,613.76 = 469,894,417.92/x
  3. Step 3: Cross multiply
    625,883,155.20x = 939,442,613.76 × 469,894,417.92
  4. Step 4: Simplify right side
    625,883,155.20x = 441,438,840,161,998,592
  5. Step 5: Solve for x
    x = 441,438,840,161,998,592/625,883,155.20
  6. Step 6: Final answer
    x = 705,305,513.49

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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.