Home / 20,915,256.28-28,863,753.80-11,623,218.04

Finding the Fourth Proportional to 20,915,256.28, 28,863,753.80 and 11,623,218.04

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Solution

The fourth proportional to 20,915,256.28, 28,863,753.80 and 11,623,218.04 is: 16,040,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,256.28 : 28,863,753.80 = 11,623,218.04 : x
  2. Step 2: Convert to fraction form
    20,915,256.28/28,863,753.80 = 11,623,218.04/x
  3. Step 3: Cross multiply
    20,915,256.28x = 28,863,753.80 × 11,623,218.04
  4. Step 4: Simplify right side
    20,915,256.28x = 335,489,703,870,278.56
  5. Step 5: Solve for x
    x = 335,489,703,870,278.56/20,915,256.28
  6. Step 6: Final answer
    x = 16,040,429.98

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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.