Home / 87,377,207.70-120,583,103.03-47,687,284.12

Finding the Fourth Proportional to 87,377,207.70, 120,583,103.03 and 47,687,284.12

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Solution

The fourth proportional to 87,377,207.70, 120,583,103.03 and 47,687,284.12 is: 65,809,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,377,207.70 : 120,583,103.03 = 47,687,284.12 : x
  2. Step 2: Convert to fraction form
    87,377,207.70/120,583,103.03 = 47,687,284.12/x
  3. Step 3: Cross multiply
    87,377,207.70x = 120,583,103.03 × 47,687,284.12
  4. Step 4: Simplify right side
    87,377,207.70x = 5,750,280,694,080,603
  5. Step 5: Solve for x
    x = 5,750,280,694,080,603/87,377,207.70
  6. Step 6: Final answer
    x = 65,809,847.28

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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.