Home / 261,151,240.80-391,278,963.60-124,542,472.80

Finding the Fourth Proportional to 261,151,240.80, 391,278,963.60 and 124,542,472.80

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Solution

The fourth proportional to 261,151,240.80, 391,278,963.60 and 124,542,472.80 is: 186,600,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,151,240.80 : 391,278,963.60 = 124,542,472.80 : x
  2. Step 2: Convert to fraction form
    261,151,240.80/391,278,963.60 = 124,542,472.80/x
  3. Step 3: Cross multiply
    261,151,240.80x = 391,278,963.60 × 124,542,472.80
  4. Step 4: Simplify right side
    261,151,240.80x = 48,730,849,681,365,192
  5. Step 5: Solve for x
    x = 48,730,849,681,365,192/261,151,240.80
  6. Step 6: Final answer
    x = 186,600,107.78

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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.