Home / 20,204,343.20-30,314,043.84-12,123,118.88

Finding the Fourth Proportional to 20,204,343.20, 30,314,043.84 and 12,123,118.88

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Solution

The fourth proportional to 20,204,343.20, 30,314,043.84 and 12,123,118.88 is: 18,189,195.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204,343.20 : 30,314,043.84 = 12,123,118.88 : x
  2. Step 2: Convert to fraction form
    20,204,343.20/30,314,043.84 = 12,123,118.88/x
  3. Step 3: Cross multiply
    20,204,343.20x = 30,314,043.84 × 12,123,118.88
  4. Step 4: Simplify right side
    20,204,343.20x = 367,500,757,205,851.75
  5. Step 5: Solve for x
    x = 367,500,757,205,851.75/20,204,343.20
  6. Step 6: Final answer
    x = 18,189,195.94

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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.