Home / 87,218,652.17-120,361,751.42-47,526,189.56

Finding the Fourth Proportional to 87,218,652.17, 120,361,751.42 and 47,526,189.56

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Solution

The fourth proportional to 87,218,652.17, 120,361,751.42 and 47,526,189.56 is: 65,586,147.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,218,652.17 : 120,361,751.42 = 47,526,189.56 : x
  2. Step 2: Convert to fraction form
    87,218,652.17/120,361,751.42 = 47,526,189.56/x
  3. Step 3: Cross multiply
    87,218,652.17x = 120,361,751.42 × 47,526,189.56
  4. Step 4: Simplify right side
    87,218,652.17x = 5,720,335,412,921,080
  5. Step 5: Solve for x
    x = 5,720,335,412,921,080/87,218,652.17
  6. Step 6: Final answer
    x = 65,586,147.81

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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.