Home / 129,491,979.42-194,376,242.21-55,752,277.13

Finding the Fourth Proportional to 129,491,979.42, 194,376,242.21 and 55,752,277.13

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Solution

The fourth proportional to 129,491,979.42, 194,376,242.21 and 55,752,277.13 is: 83,687,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,491,979.42 : 194,376,242.21 = 55,752,277.13 : x
  2. Step 2: Convert to fraction form
    129,491,979.42/194,376,242.21 = 55,752,277.13/x
  3. Step 3: Cross multiply
    129,491,979.42x = 194,376,242.21 × 55,752,277.13
  4. Step 4: Simplify right side
    129,491,979.42x = 10,836,918,121,929,282
  5. Step 5: Solve for x
    x = 10,836,918,121,929,282/129,491,979.42
  6. Step 6: Final answer
    x = 83,687,948.63

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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.