Home / 81,741,026.82-122,490,456.98-67,270,708.52

Finding the Fourth Proportional to 81,741,026.82, 122,490,456.98 and 67,270,708.52

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Solution

The fourth proportional to 81,741,026.82, 122,490,456.98 and 67,270,708.52 is: 100,806,414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,741,026.82 : 122,490,456.98 = 67,270,708.52 : x
  2. Step 2: Convert to fraction form
    81,741,026.82/122,490,456.98 = 67,270,708.52/x
  3. Step 3: Cross multiply
    81,741,026.82x = 122,490,456.98 × 67,270,708.52
  4. Step 4: Simplify right side
    81,741,026.82x = 8,240,019,827,034,373
  5. Step 5: Solve for x
    x = 8,240,019,827,034,373/81,741,026.82
  6. Step 6: Final answer
    x = 100,806,414.45

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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.