Home / 78,377,456.11-117,612,028.36-29,227,264.97

Finding the Fourth Proportional to 78,377,456.11, 117,612,028.36 and 29,227,264.97

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Solution

The fourth proportional to 78,377,456.11, 117,612,028.36 and 29,227,264.97 is: 43,857,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,377,456.11 : 117,612,028.36 = 29,227,264.97 : x
  2. Step 2: Convert to fraction form
    78,377,456.11/117,612,028.36 = 29,227,264.97/x
  3. Step 3: Cross multiply
    78,377,456.11x = 117,612,028.36 × 29,227,264.97
  4. Step 4: Simplify right side
    78,377,456.11x = 3,437,477,916,151,934
  5. Step 5: Solve for x
    x = 3,437,477,916,151,934/78,377,456.11
  6. Step 6: Final answer
    x = 43,857,992.93

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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.