Home / 20,743,712.22-28,625,572.46-11,451,082.70

Finding the Fourth Proportional to 20,743,712.22, 28,625,572.46 and 11,451,082.70

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Solution

The fourth proportional to 20,743,712.22, 28,625,572.46 and 11,451,082.70 is: 15,802,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,712.22 : 28,625,572.46 = 11,451,082.70 : x
  2. Step 2: Convert to fraction form
    20,743,712.22/28,625,572.46 = 11,451,082.70/x
  3. Step 3: Cross multiply
    20,743,712.22x = 28,625,572.46 × 11,451,082.70
  4. Step 4: Simplify right side
    20,743,712.22x = 327,793,797,373,919.12
  5. Step 5: Solve for x
    x = 327,793,797,373,919.12/20,743,712.22
  6. Step 6: Final answer
    x = 15,802,079.87

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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.