Home / 84,301,336.28-126,255,578.82-81,974,122.92

Finding the Fourth Proportional to 84,301,336.28, 126,255,578.82 and 81,974,122.92

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Solution

The fourth proportional to 84,301,336.28, 126,255,578.82 and 81,974,122.92 is: 122,770,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,301,336.28 : 126,255,578.82 = 81,974,122.92 : x
  2. Step 2: Convert to fraction form
    84,301,336.28/126,255,578.82 = 81,974,122.92/x
  3. Step 3: Cross multiply
    84,301,336.28x = 126,255,578.82 × 81,974,122.92
  4. Step 4: Simplify right side
    84,301,336.28x = 10,349,690,337,526,428
  5. Step 5: Solve for x
    x = 10,349,690,337,526,428/84,301,336.28
  6. Step 6: Final answer
    x = 122,770,181.28

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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.