Home / 83,663,744.70-125,747,559.45-72,578,279.10

Finding the Fourth Proportional to 83,663,744.70, 125,747,559.45 and 72,578,279.10

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Solution

The fourth proportional to 83,663,744.70, 125,747,559.45 and 72,578,279.10 is: 109,085,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,663,744.70 : 125,747,559.45 = 72,578,279.10 : x
  2. Step 2: Convert to fraction form
    83,663,744.70/125,747,559.45 = 72,578,279.10/x
  3. Step 3: Cross multiply
    83,663,744.70x = 125,747,559.45 × 72,578,279.10
  4. Step 4: Simplify right side
    83,663,744.70x = 9,126,541,465,905,942
  5. Step 5: Solve for x
    x = 9,126,541,465,905,942/83,663,744.70
  6. Step 6: Final answer
    x = 109,085,978.62

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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.