Home / 91,532,891.70-137,299,337.55-48,385,422.90

Finding the Fourth Proportional to 91,532,891.70, 137,299,337.55 and 48,385,422.90

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Solution

The fourth proportional to 91,532,891.70, 137,299,337.55 and 48,385,422.90 is: 72,578,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,532,891.70 : 137,299,337.55 = 48,385,422.90 : x
  2. Step 2: Convert to fraction form
    91,532,891.70/137,299,337.55 = 48,385,422.90/x
  3. Step 3: Cross multiply
    91,532,891.70x = 137,299,337.55 × 48,385,422.90
  4. Step 4: Simplify right side
    91,532,891.70x = 6,643,286,511,246,600
  5. Step 5: Solve for x
    x = 6,643,286,511,246,600/91,532,891.70
  6. Step 6: Final answer
    x = 72,578,134.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.