Home / 279,918,624.60-386,287,868.14-156,159,301.73

Finding the Fourth Proportional to 279,918,624.60, 386,287,868.14 and 156,159,301.73

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Solution

The fourth proportional to 279,918,624.60, 386,287,868.14 and 156,159,301.73 is: 215,499,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,918,624.60 : 386,287,868.14 = 156,159,301.73 : x
  2. Step 2: Convert to fraction form
    279,918,624.60/386,287,868.14 = 156,159,301.73/x
  3. Step 3: Cross multiply
    279,918,624.60x = 386,287,868.14 × 156,159,301.73
  4. Step 4: Simplify right side
    279,918,624.60x = 60,322,443,755,512,704
  5. Step 5: Solve for x
    x = 60,322,443,755,512,704/279,918,624.60
  6. Step 6: Final answer
    x = 215,499,929.10

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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.