Home / 83,643,780.60-125,297,709.30-47,699,998.20

Finding the Fourth Proportional to 83,643,780.60, 125,297,709.30 and 47,699,998.20

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Solution

The fourth proportional to 83,643,780.60, 125,297,709.30 and 47,699,998.20 is: 71,454,212.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,643,780.60 : 125,297,709.30 = 47,699,998.20 : x
  2. Step 2: Convert to fraction form
    83,643,780.60/125,297,709.30 = 47,699,998.20/x
  3. Step 3: Cross multiply
    83,643,780.60x = 125,297,709.30 × 47,699,998.20
  4. Step 4: Simplify right side
    83,643,780.60x = 5,976,700,508,074,123
  5. Step 5: Solve for x
    x = 5,976,700,508,074,123/83,643,780.60
  6. Step 6: Final answer
    x = 71,454,212.92

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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.