Home / 418,545,999.70-627,818,999.55-327,747,202.90

Finding the Fourth Proportional to 418,545,999.70, 627,818,999.55 and 327,747,202.90

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Solution

The fourth proportional to 418,545,999.70, 627,818,999.55 and 327,747,202.90 is: 491,620,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,545,999.70 : 627,818,999.55 = 327,747,202.90 : x
  2. Step 2: Convert to fraction form
    418,545,999.70/627,818,999.55 = 327,747,202.90/x
  3. Step 3: Cross multiply
    418,545,999.70x = 627,818,999.55 × 327,747,202.90
  4. Step 4: Simplify right side
    418,545,999.70x = 205,765,921,029,988,832
  5. Step 5: Solve for x
    x = 205,765,921,029,988,832/418,545,999.70
  6. Step 6: Final answer
    x = 491,620,804.35

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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.