Home / 18,218,974.20-27,328,461.30-7,432,690.20

Finding the Fourth Proportional to 18,218,974.20, 27,328,461.30 and 7,432,690.20

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Solution

The fourth proportional to 18,218,974.20, 27,328,461.30 and 7,432,690.20 is: 11,149,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218,974.20 : 27,328,461.30 = 7,432,690.20 : x
  2. Step 2: Convert to fraction form
    18,218,974.20/27,328,461.30 = 7,432,690.20/x
  3. Step 3: Cross multiply
    18,218,974.20x = 27,328,461.30 × 7,432,690.20
  4. Step 4: Simplify right side
    18,218,974.20x = 203,123,986,485,589.28
  5. Step 5: Solve for x
    x = 203,123,986,485,589.28/18,218,974.20
  6. Step 6: Final answer
    x = 11,149,035.30

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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.