Home / 12,228,018.78-18,342,436.41-5,496,452.22

Finding the Fourth Proportional to 12,228,018.78, 18,342,436.41 and 5,496,452.22

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Solution

The fourth proportional to 12,228,018.78, 18,342,436.41 and 5,496,452.22 is: 8,244,861.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228,018.78 : 18,342,436.41 = 5,496,452.22 : x
  2. Step 2: Convert to fraction form
    12,228,018.78/18,342,436.41 = 5,496,452.22/x
  3. Step 3: Cross multiply
    12,228,018.78x = 18,342,436.41 × 5,496,452.22
  4. Step 4: Simplify right side
    12,228,018.78x = 100,818,325,325,953.33
  5. Step 5: Solve for x
    x = 100,818,325,325,953.33/12,228,018.78
  6. Step 6: Final answer
    x = 8,244,861.83

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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.