Home / 13,469,272.20-20,206,532.70-5,380,871.40

Finding the Fourth Proportional to 13,469,272.20, 20,206,532.70 and 5,380,871.40

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Solution

The fourth proportional to 13,469,272.20, 20,206,532.70 and 5,380,871.40 is: 8,072,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469,272.20 : 20,206,532.70 = 5,380,871.40 : x
  2. Step 2: Convert to fraction form
    13,469,272.20/20,206,532.70 = 5,380,871.40/x
  3. Step 3: Cross multiply
    13,469,272.20x = 20,206,532.70 × 5,380,871.40
  4. Step 4: Simplify right side
    13,469,272.20x = 108,728,753,898,594.78
  5. Step 5: Solve for x
    x = 108,728,753,898,594.78/13,469,272.20
  6. Step 6: Final answer
    x = 8,072,355.53

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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.