Home / 418,387,901.64-627,387,920.67-156,002,001.78

Finding the Fourth Proportional to 418,387,901.64, 627,387,920.67 and 156,002,001.78

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Solution

The fourth proportional to 418,387,901.64, 627,387,920.67 and 156,002,001.78 is: 233,930,692.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,387,901.64 : 627,387,920.67 = 156,002,001.78 : x
  2. Step 2: Convert to fraction form
    418,387,901.64/627,387,920.67 = 156,002,001.78/x
  3. Step 3: Cross multiply
    418,387,901.64x = 627,387,920.67 × 156,002,001.78
  4. Step 4: Simplify right side
    418,387,901.64x = 97,873,771,517,111,840
  5. Step 5: Solve for x
    x = 97,873,771,517,111,840/418,387,901.64
  6. Step 6: Final answer
    x = 233,930,692.39

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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.