Home / 87,050,494.11-120,129,677.91-47,891,430.81

Finding the Fourth Proportional to 87,050,494.11, 120,129,677.91 and 47,891,430.81

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Solution

The fourth proportional to 87,050,494.11, 120,129,677.91 and 47,891,430.81 is: 66,090,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,050,494.11 : 120,129,677.91 = 47,891,430.81 : x
  2. Step 2: Convert to fraction form
    87,050,494.11/120,129,677.91 = 47,891,430.81/x
  3. Step 3: Cross multiply
    87,050,494.11x = 120,129,677.91 × 47,891,430.81
  4. Step 4: Simplify right side
    87,050,494.11x = 5,753,182,157,854,351
  5. Step 5: Solve for x
    x = 5,753,182,157,854,351/87,050,494.11
  6. Step 6: Final answer
    x = 66,090,172.34

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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.