Home / 393,391,734-542,951,654.16-234,632,033.68

Finding the Fourth Proportional to 393,391,734, 542,951,654.16 and 234,632,033.68

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Solution

The fourth proportional to 393,391,734, 542,951,654.16 and 234,632,033.68 is: 323,834,589.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,391,734 : 542,951,654.16 = 234,632,033.68 : x
  2. Step 2: Convert to fraction form
    393,391,734/542,951,654.16 = 234,632,033.68/x
  3. Step 3: Cross multiply
    393,391,734x = 542,951,654.16 × 234,632,033.68
  4. Step 4: Simplify right side
    393,391,734x = 127,393,850,805,480,832
  5. Step 5: Solve for x
    x = 127,393,850,805,480,832/393,391,734
  6. Step 6: Final answer
    x = 323,834,589.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.