Home / 80,687,227.40-120,401,517.41-71,991,559.88

Finding the Fourth Proportional to 80,687,227.40, 120,401,517.41 and 71,991,559.88

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Solution

The fourth proportional to 80,687,227.40, 120,401,517.41 and 71,991,559.88 is: 107,425,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,687,227.40 : 120,401,517.41 = 71,991,559.88 : x
  2. Step 2: Convert to fraction form
    80,687,227.40/120,401,517.41 = 71,991,559.88/x
  3. Step 3: Cross multiply
    80,687,227.40x = 120,401,517.41 × 71,991,559.88
  4. Step 4: Simplify right side
    80,687,227.40x = 8,667,893,050,264,877
  5. Step 5: Solve for x
    x = 8,667,893,050,264,877/80,687,227.40
  6. Step 6: Final answer
    x = 107,425,838.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.