Home / 15,391,863.92-21,231,517.56-10,164,920.16

Finding the Fourth Proportional to 15,391,863.92, 21,231,517.56 and 10,164,920.16

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Solution

The fourth proportional to 15,391,863.92, 21,231,517.56 and 10,164,920.16 is: 14,021,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,863.92 : 21,231,517.56 = 10,164,920.16 : x
  2. Step 2: Convert to fraction form
    15,391,863.92/21,231,517.56 = 10,164,920.16/x
  3. Step 3: Cross multiply
    15,391,863.92x = 21,231,517.56 × 10,164,920.16
  4. Step 4: Simplify right side
    15,391,863.92x = 215,816,680,873,038
  5. Step 5: Solve for x
    x = 215,816,680,873,038/15,391,863.92
  6. Step 6: Final answer
    x = 14,021,477.97

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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.