Home / 20,747,941.52-31,123,406.97-7,968,446.24

Finding the Fourth Proportional to 20,747,941.52, 31,123,406.97 and 7,968,446.24

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Solution

The fourth proportional to 20,747,941.52, 31,123,406.97 and 7,968,446.24 is: 11,953,243.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,941.52 : 31,123,406.97 = 7,968,446.24 : x
  2. Step 2: Convert to fraction form
    20,747,941.52/31,123,406.97 = 7,968,446.24/x
  3. Step 3: Cross multiply
    20,747,941.52x = 31,123,406.97 × 7,968,446.24
  4. Step 4: Simplify right side
    20,747,941.52x = 248,005,195,090,469.25
  5. Step 5: Solve for x
    x = 248,005,195,090,469.25/20,747,941.52
  6. Step 6: Final answer
    x = 11,953,243.41

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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.