Home / 186,787,251.10-279,802,963.05-129,344,383.90

Finding the Fourth Proportional to 186,787,251.10, 279,802,963.05 and 129,344,383.90

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Solution

The fourth proportional to 186,787,251.10, 279,802,963.05 and 129,344,383.90 is: 193,754,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,787,251.10 : 279,802,963.05 = 129,344,383.90 : x
  2. Step 2: Convert to fraction form
    186,787,251.10/279,802,963.05 = 129,344,383.90/x
  3. Step 3: Cross multiply
    186,787,251.10x = 279,802,963.05 × 129,344,383.90
  4. Step 4: Simplify right side
    186,787,251.10x = 36,190,941,869,096,720
  5. Step 5: Solve for x
    x = 36,190,941,869,096,720/186,787,251.10
  6. Step 6: Final answer
    x = 193,754,882.39

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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.