Home / 20,123,987.50-31,381,722.75

Finding the Third Proportional to 20,123,987.50 and 31,381,722.75

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Solution

The third proportional to 20,123,987.50 and 31,381,722.75 is: 48,937,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,987.50 : 31,381,722.75 = 31,381,722.75 : x
  2. Step 2: Convert to fraction form
    20,123,987.50/31,381,722.75 = 31,381,722.75/x
  3. Step 3: Cross multiply
    20,123,987.50x = 31,381,722.75 × 31,381,722.75
  4. Step 4: Simplify right side
    20,123,987.50x = 984,812,522,757,867.50
  5. Step 5: Solve for x
    x = 984,812,522,757,867.50/20,123,987.50
  6. Step 6: Final answer
    x = 48,937,245.80

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.