Home / 85,951,885.44-128,972,617.92-38,071,632

Finding the Fourth Proportional to 85,951,885.44, 128,972,617.92 and 38,071,632

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Solution

The fourth proportional to 85,951,885.44, 128,972,617.92 and 38,071,632 is: 57,127,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,951,885.44 : 128,972,617.92 = 38,071,632 : x
  2. Step 2: Convert to fraction form
    85,951,885.44/128,972,617.92 = 38,071,632/x
  3. Step 3: Cross multiply
    85,951,885.44x = 128,972,617.92 × 38,071,632
  4. Step 4: Simplify right side
    85,951,885.44x = 4,910,198,047,526,846
  5. Step 5: Solve for x
    x = 4,910,198,047,526,846/85,951,885.44
  6. Step 6: Final answer
    x = 57,127,287.23

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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.