Home / 418,079,079.78-627,078,097.23-126,948,761.70

Finding the Fourth Proportional to 418,079,079.78, 627,078,097.23 and 126,948,761.70

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Solution

The fourth proportional to 418,079,079.78, 627,078,097.23 and 126,948,761.70 is: 190,410,838.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,079,079.78 : 627,078,097.23 = 126,948,761.70 : x
  2. Step 2: Convert to fraction form
    418,079,079.78/627,078,097.23 = 126,948,761.70/x
  3. Step 3: Cross multiply
    418,079,079.78x = 627,078,097.23 × 126,948,761.70
  4. Step 4: Simplify right side
    418,079,079.78x = 79,606,787,932,540,704
  5. Step 5: Solve for x
    x = 79,606,787,932,540,704/418,079,079.78
  6. Step 6: Final answer
    x = 190,410,838.00

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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.