Home / 391,172,691.30-539,700,592.59-234,482,626.86

Finding the Fourth Proportional to 391,172,691.30, 539,700,592.59 and 234,482,626.86

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Solution

The fourth proportional to 391,172,691.30, 539,700,592.59 and 234,482,626.86 is: 323,515,458.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,172,691.30 : 539,700,592.59 = 234,482,626.86 : x
  2. Step 2: Convert to fraction form
    391,172,691.30/539,700,592.59 = 234,482,626.86/x
  3. Step 3: Cross multiply
    391,172,691.30x = 539,700,592.59 × 234,482,626.86
  4. Step 4: Simplify right side
    391,172,691.30x = 126,550,412,668,401,872
  5. Step 5: Solve for x
    x = 126,550,412,668,401,872/391,172,691.30
  6. Step 6: Final answer
    x = 323,515,458.73

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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.