Home / 20,965,512.60-31,465,983.60-8,195,182.20

Finding the Fourth Proportional to 20,965,512.60, 31,465,983.60 and 8,195,182.20

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Solution

The fourth proportional to 20,965,512.60, 31,465,983.60 and 8,195,182.20 is: 12,299,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965,512.60 : 31,465,983.60 = 8,195,182.20 : x
  2. Step 2: Convert to fraction form
    20,965,512.60/31,465,983.60 = 8,195,182.20/x
  3. Step 3: Cross multiply
    20,965,512.60x = 31,465,983.60 × 8,195,182.20
  4. Step 4: Simplify right side
    20,965,512.60x = 257,869,468,704,211.94
  5. Step 5: Solve for x
    x = 257,869,468,704,211.94/20,965,512.60
  6. Step 6: Final answer
    x = 12,299,697.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.