Home / 20,535,121.28-28,340,041.20-11,714,766.68

Finding the Fourth Proportional to 20,535,121.28, 28,340,041.20 and 11,714,766.68

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Solution

The fourth proportional to 20,535,121.28, 28,340,041.20 and 11,714,766.68 is: 16,167,275.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,121.28 : 28,340,041.20 = 11,714,766.68 : x
  2. Step 2: Convert to fraction form
    20,535,121.28/28,340,041.20 = 11,714,766.68/x
  3. Step 3: Cross multiply
    20,535,121.28x = 28,340,041.20 × 11,714,766.68
  4. Step 4: Simplify right side
    20,535,121.28x = 331,996,970,359,587.19
  5. Step 5: Solve for x
    x = 331,996,970,359,587.19/20,535,121.28
  6. Step 6: Final answer
    x = 16,167,275.85

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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.