Home / 20,915,261.28-28,863,760.68-11,623,223.04

Finding the Fourth Proportional to 20,915,261.28, 28,863,760.68 and 11,623,223.04

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Solution

The fourth proportional to 20,915,261.28, 28,863,760.68 and 11,623,223.04 is: 16,040,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,261.28 : 28,863,760.68 = 11,623,223.04 : x
  2. Step 2: Convert to fraction form
    20,915,261.28/28,863,760.68 = 11,623,223.04/x
  3. Step 3: Cross multiply
    20,915,261.28x = 28,863,760.68 × 11,623,223.04
  4. Step 4: Simplify right side
    20,915,261.28x = 335,489,928,156,822.06
  5. Step 5: Solve for x
    x = 335,489,928,156,822.06/20,915,261.28
  6. Step 6: Final answer
    x = 16,040,436.87

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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.