Home / 91,882,608.30-137,823,912.45-40,769,793.90

Finding the Fourth Proportional to 91,882,608.30, 137,823,912.45 and 40,769,793.90

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Solution

The fourth proportional to 91,882,608.30, 137,823,912.45 and 40,769,793.90 is: 61,154,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,882,608.30 : 137,823,912.45 = 40,769,793.90 : x
  2. Step 2: Convert to fraction form
    91,882,608.30/137,823,912.45 = 40,769,793.90/x
  3. Step 3: Cross multiply
    91,882,608.30x = 137,823,912.45 × 40,769,793.90
  4. Step 4: Simplify right side
    91,882,608.30x = 5,619,052,505,078,143
  5. Step 5: Solve for x
    x = 5,619,052,505,078,143/91,882,608.30
  6. Step 6: Final answer
    x = 61,154,690.85

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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.