Home / 21,540,079.28-29,725,267.88-11,750,520.56

Finding the Fourth Proportional to 21,540,079.28, 29,725,267.88 and 11,750,520.56

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Solution

The fourth proportional to 21,540,079.28, 29,725,267.88 and 11,750,520.56 is: 16,215,695.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540,079.28 : 29,725,267.88 = 11,750,520.56 : x
  2. Step 2: Convert to fraction form
    21,540,079.28/29,725,267.88 = 11,750,520.56/x
  3. Step 3: Cross multiply
    21,540,079.28x = 29,725,267.88 × 11,750,520.56
  4. Step 4: Simplify right side
    21,540,079.28x = 349,287,371,375,447.62
  5. Step 5: Solve for x
    x = 349,287,371,375,447.62/21,540,079.28
  6. Step 6: Final answer
    x = 16,215,695.72

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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.