Home / 80,482,757.20-111,139,990.60-51,123,548.88

Finding the Fourth Proportional to 80,482,757.20, 111,139,990.60 and 51,123,548.88

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Solution

The fourth proportional to 80,482,757.20, 111,139,990.60 and 51,123,548.88 is: 70,597,366.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,482,757.20 : 111,139,990.60 = 51,123,548.88 : x
  2. Step 2: Convert to fraction form
    80,482,757.20/111,139,990.60 = 51,123,548.88/x
  3. Step 3: Cross multiply
    80,482,757.20x = 111,139,990.60 × 51,123,548.88
  4. Step 4: Simplify right side
    80,482,757.20x = 5,681,870,741,961,841
  5. Step 5: Solve for x
    x = 5,681,870,741,961,841/80,482,757.20
  6. Step 6: Final answer
    x = 70,597,366.93

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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.