Home / 12,096,820.80-18,145,231.20-5,378,356.80

Finding the Fourth Proportional to 12,096,820.80, 18,145,231.20 and 5,378,356.80

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Solution

The fourth proportional to 12,096,820.80, 18,145,231.20 and 5,378,356.80 is: 8,067,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,820.80 : 18,145,231.20 = 5,378,356.80 : x
  2. Step 2: Convert to fraction form
    12,096,820.80/18,145,231.20 = 5,378,356.80/x
  3. Step 3: Cross multiply
    12,096,820.80x = 18,145,231.20 × 5,378,356.80
  4. Step 4: Simplify right side
    12,096,820.80x = 97,591,527,612,092.16
  5. Step 5: Solve for x
    x = 97,591,527,612,092.16/12,096,820.80
  6. Step 6: Final answer
    x = 8,067,535.20

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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.