Home / 20,386,046.42-28,132,748.03-11,218,689.17

Finding the Fourth Proportional to 20,386,046.42, 28,132,748.03 and 11,218,689.17

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Solution

The fourth proportional to 20,386,046.42, 28,132,748.03 and 11,218,689.17 is: 15,481,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,046.42 : 28,132,748.03 = 11,218,689.17 : x
  2. Step 2: Convert to fraction form
    20,386,046.42/28,132,748.03 = 11,218,689.17/x
  3. Step 3: Cross multiply
    20,386,046.42x = 28,132,748.03 × 11,218,689.17
  4. Step 4: Simplify right side
    20,386,046.42x = 315,612,555,449,742.62
  5. Step 5: Solve for x
    x = 315,612,555,449,742.62/20,386,046.42
  6. Step 6: Final answer
    x = 15,481,793.23

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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.