Home / 87,377,379.12-120,583,679.28-47,687,083.08

Finding the Fourth Proportional to 87,377,379.12, 120,583,679.28 and 47,687,083.08

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Solution

The fourth proportional to 87,377,379.12, 120,583,679.28 and 47,687,083.08 is: 65,809,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,377,379.12 : 120,583,679.28 = 47,687,083.08 : x
  2. Step 2: Convert to fraction form
    87,377,379.12/120,583,679.28 = 47,687,083.08/x
  3. Step 3: Cross multiply
    87,377,379.12x = 120,583,679.28 × 47,687,083.08
  4. Step 4: Simplify right side
    87,377,379.12x = 5,750,283,931,917,434
  5. Step 5: Solve for x
    x = 5,750,283,931,917,434/87,377,379.12
  6. Step 6: Final answer
    x = 65,809,755.22

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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.