Home / 15,304,383.28-21,121,003.92-8,428,863.52

Finding the Fourth Proportional to 15,304,383.28, 21,121,003.92 and 8,428,863.52

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Solution

The fourth proportional to 15,304,383.28, 21,121,003.92 and 8,428,863.52 is: 11,632,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304,383.28 : 21,121,003.92 = 8,428,863.52 : x
  2. Step 2: Convert to fraction form
    15,304,383.28/21,121,003.92 = 8,428,863.52/x
  3. Step 3: Cross multiply
    15,304,383.28x = 21,121,003.92 × 8,428,863.52
  4. Step 4: Simplify right side
    15,304,383.28x = 178,026,059,447,065
  5. Step 5: Solve for x
    x = 178,026,059,447,065/15,304,383.28
  6. Step 6: Final answer
    x = 11,632,357.62

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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.