Home / 20,451,908.70-30,677,863.05-12,799,158.30

Finding the Fourth Proportional to 20,451,908.70, 30,677,863.05 and 12,799,158.30

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Solution

The fourth proportional to 20,451,908.70, 30,677,863.05 and 12,799,158.30 is: 19,198,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,908.70 : 30,677,863.05 = 12,799,158.30 : x
  2. Step 2: Convert to fraction form
    20,451,908.70/30,677,863.05 = 12,799,158.30/x
  3. Step 3: Cross multiply
    20,451,908.70x = 30,677,863.05 × 12,799,158.30
  4. Step 4: Simplify right side
    20,451,908.70x = 392,650,825,482,670.88
  5. Step 5: Solve for x
    x = 392,650,825,482,670.88/20,451,908.70
  6. Step 6: Final answer
    x = 19,198,737.45

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Similar ratio
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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.