Home / 81,394,715.70-122,092,073.55-49,109,674.95

Finding the Fourth Proportional to 81,394,715.70, 122,092,073.55 and 49,109,674.95

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Solution

The fourth proportional to 81,394,715.70, 122,092,073.55 and 49,109,674.95 is: 73,664,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,394,715.70 : 122,092,073.55 = 49,109,674.95 : x
  2. Step 2: Convert to fraction form
    81,394,715.70/122,092,073.55 = 49,109,674.95/x
  3. Step 3: Cross multiply
    81,394,715.70x = 122,092,073.55 × 49,109,674.95
  4. Step 4: Simplify right side
    81,394,715.70x = 5,995,902,046,011,993
  5. Step 5: Solve for x
    x = 5,995,902,046,011,993/81,394,715.70
  6. Step 6: Final answer
    x = 73,664,512.43

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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.