Home / 83,663,800.70-125,747,643.45-72,578,335.10

Finding the Fourth Proportional to 83,663,800.70, 125,747,643.45 and 72,578,335.10

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Solution

The fourth proportional to 83,663,800.70, 125,747,643.45 and 72,578,335.10 is: 109,086,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,663,800.70 : 125,747,643.45 = 72,578,335.10 : x
  2. Step 2: Convert to fraction form
    83,663,800.70/125,747,643.45 = 72,578,335.10/x
  3. Step 3: Cross multiply
    83,663,800.70x = 125,747,643.45 × 72,578,335.10
  4. Step 4: Simplify right side
    83,663,800.70x = 9,126,554,604,349,420
  5. Step 5: Solve for x
    x = 9,126,554,604,349,420/83,663,800.70
  6. Step 6: Final answer
    x = 109,086,062.65

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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.