Home / 87,489,138.59-120,738,679.16-50,319,429.22

Finding the Fourth Proportional to 87,489,138.59, 120,738,679.16 and 50,319,429.22

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Solution

The fourth proportional to 87,489,138.59, 120,738,679.16 and 50,319,429.22 is: 69,442,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,489,138.59 : 120,738,679.16 = 50,319,429.22 : x
  2. Step 2: Convert to fraction form
    87,489,138.59/120,738,679.16 = 50,319,429.22/x
  3. Step 3: Cross multiply
    87,489,138.59x = 120,738,679.16 × 50,319,429.22
  4. Step 4: Simplify right side
    87,489,138.59x = 6,075,501,420,107,909
  5. Step 5: Solve for x
    x = 6,075,501,420,107,909/87,489,138.59
  6. Step 6: Final answer
    x = 69,442,921.92

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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.