Home / 615,681,499.10-924,995,565.45-394,785,623.79

Finding the Fourth Proportional to 615,681,499.10, 924,995,565.45 and 394,785,623.79

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Solution

The fourth proportional to 615,681,499.10, 924,995,565.45 and 394,785,623.79 is: 593,123,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,681,499.10 : 924,995,565.45 = 394,785,623.79 : x
  2. Step 2: Convert to fraction form
    615,681,499.10/924,995,565.45 = 394,785,623.79/x
  3. Step 3: Cross multiply
    615,681,499.10x = 924,995,565.45 × 394,785,623.79
  4. Step 4: Simplify right side
    615,681,499.10x = 365,174,951,309,162,048
  5. Step 5: Solve for x
    x = 365,174,951,309,162,048/615,681,499.10
  6. Step 6: Final answer
    x = 593,123,151.90

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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.