Home / 8,972,163.20-13,458,244.80-8,279,321.60

Finding the Fourth Proportional to 8,972,163.20, 13,458,244.80 and 8,279,321.60

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Solution

The fourth proportional to 8,972,163.20, 13,458,244.80 and 8,279,321.60 is: 12,418,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972,163.20 : 13,458,244.80 = 8,279,321.60 : x
  2. Step 2: Convert to fraction form
    8,972,163.20/13,458,244.80 = 8,279,321.60/x
  3. Step 3: Cross multiply
    8,972,163.20x = 13,458,244.80 × 8,279,321.60
  4. Step 4: Simplify right side
    8,972,163.20x = 111,425,136,870,727.69
  5. Step 5: Solve for x
    x = 111,425,136,870,727.69/8,972,163.20
  6. Step 6: Final answer
    x = 12,418,982.40

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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.