Home / 12,450,187.20-18,664,912.80-5,267,236.80

Finding the Fourth Proportional to 12,450,187.20, 18,664,912.80 and 5,267,236.80

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Solution

The fourth proportional to 12,450,187.20, 18,664,912.80 and 5,267,236.80 is: 7,896,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450,187.20 : 18,664,912.80 = 5,267,236.80 : x
  2. Step 2: Convert to fraction form
    12,450,187.20/18,664,912.80 = 5,267,236.80/x
  3. Step 3: Cross multiply
    12,450,187.20x = 18,664,912.80 × 5,267,236.80
  4. Step 4: Simplify right side
    12,450,187.20x = 98,312,515,568,951.05
  5. Step 5: Solve for x
    x = 98,312,515,568,951.05/12,450,187.20
  6. Step 6: Final answer
    x = 7,896,468.86

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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.