Home / 20,386,046.64-28,132,748.37-11,218,689.39

Finding the Fourth Proportional to 20,386,046.64, 28,132,748.37 and 11,218,689.39

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Solution

The fourth proportional to 20,386,046.64, 28,132,748.37 and 11,218,689.39 is: 15,481,793.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,046.64 : 28,132,748.37 = 11,218,689.39 : x
  2. Step 2: Convert to fraction form
    20,386,046.64/28,132,748.37 = 11,218,689.39/x
  3. Step 3: Cross multiply
    20,386,046.64x = 28,132,748.37 × 11,218,689.39
  4. Step 4: Simplify right side
    20,386,046.64x = 315,612,565,650,058.81
  5. Step 5: Solve for x
    x = 315,612,565,650,058.81/20,386,046.64
  6. Step 6: Final answer
    x = 15,481,793.56

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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.