Home / 381,718,932.80-571,906,552.80-327,971,220.80

Finding the Fourth Proportional to 381,718,932.80, 571,906,552.80 and 327,971,220.80

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Solution

The fourth proportional to 381,718,932.80, 571,906,552.80 and 327,971,220.80 is: 491,379,583.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,718,932.80 : 571,906,552.80 = 327,971,220.80 : x
  2. Step 2: Convert to fraction form
    381,718,932.80/571,906,552.80 = 327,971,220.80/x
  3. Step 3: Cross multiply
    381,718,932.80x = 571,906,552.80 × 327,971,220.80
  4. Step 4: Simplify right side
    381,718,932.80x = 187,568,890,305,335,648
  5. Step 5: Solve for x
    x = 187,568,890,305,335,648/381,718,932.80
  6. Step 6: Final answer
    x = 491,379,583.74

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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.