Home / 80,336,491.68-120,520,773.36-42,015,257.76

Finding the Fourth Proportional to 80,336,491.68, 120,520,773.36 and 42,015,257.76

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Solution

The fourth proportional to 80,336,491.68, 120,520,773.36 and 42,015,257.76 is: 63,031,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,336,491.68 : 120,520,773.36 = 42,015,257.76 : x
  2. Step 2: Convert to fraction form
    80,336,491.68/120,520,773.36 = 42,015,257.76/x
  3. Step 3: Cross multiply
    80,336,491.68x = 120,520,773.36 × 42,015,257.76
  4. Step 4: Simplify right side
    80,336,491.68x = 5,063,711,358,154,941
  5. Step 5: Solve for x
    x = 5,063,711,358,154,941/80,336,491.68
  6. Step 6: Final answer
    x = 63,031,273.24

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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.