Home / 22,811,820.92-31,469,760.50-20,200,985.72

Finding the Fourth Proportional to 22,811,820.92, 31,469,760.50 and 20,200,985.72

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Solution

The fourth proportional to 22,811,820.92, 31,469,760.50 and 20,200,985.72 is: 27,868,015.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,811,820.92 : 31,469,760.50 = 20,200,985.72 : x
  2. Step 2: Convert to fraction form
    22,811,820.92/31,469,760.50 = 20,200,985.72/x
  3. Step 3: Cross multiply
    22,811,820.92x = 31,469,760.50 × 20,200,985.72
  4. Step 4: Simplify right side
    22,811,820.92x = 635,720,182,472,320
  5. Step 5: Solve for x
    x = 635,720,182,472,320/22,811,820.92
  6. Step 6: Final answer
    x = 27,868,015.65

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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.