Home / 20,747,891.13-31,123,331.37-7,968,395.85

Finding the Fourth Proportional to 20,747,891.13, 31,123,331.37 and 7,968,395.85

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Solution

The fourth proportional to 20,747,891.13, 31,123,331.37 and 7,968,395.85 is: 11,953,167.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,891.13 : 31,123,331.37 = 7,968,395.85 : x
  2. Step 2: Convert to fraction form
    20,747,891.13/31,123,331.37 = 7,968,395.85/x
  3. Step 3: Cross multiply
    20,747,891.13x = 31,123,331.37 × 7,968,395.85
  4. Step 4: Simplify right side
    20,747,891.13x = 248,003,024,526,882.81
  5. Step 5: Solve for x
    x = 248,003,024,526,882.81/20,747,891.13
  6. Step 6: Final answer
    x = 11,953,167.82

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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.