Home / 10,231,660.80-15,359,932.80-7,687,353.60

Finding the Fourth Proportional to 10,231,660.80, 15,359,932.80 and 7,687,353.60

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Solution

The fourth proportional to 10,231,660.80, 15,359,932.80 and 7,687,353.60 is: 11,540,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231,660.80 : 15,359,932.80 = 7,687,353.60 : x
  2. Step 2: Convert to fraction form
    10,231,660.80/15,359,932.80 = 7,687,353.60/x
  3. Step 3: Cross multiply
    10,231,660.80x = 15,359,932.80 × 7,687,353.60
  4. Step 4: Simplify right side
    10,231,660.80x = 118,077,234,705,838.08
  5. Step 5: Solve for x
    x = 118,077,234,705,838.08/10,231,660.80
  6. Step 6: Final answer
    x = 11,540,378.15

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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.