Home / 18,084,013.10-27,129,008.55-8,378,325.80

Finding the Fourth Proportional to 18,084,013.10, 27,129,008.55 and 8,378,325.80

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Solution

The fourth proportional to 18,084,013.10, 27,129,008.55 and 8,378,325.80 is: 12,568,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084,013.10 : 27,129,008.55 = 8,378,325.80 : x
  2. Step 2: Convert to fraction form
    18,084,013.10/27,129,008.55 = 8,378,325.80/x
  3. Step 3: Cross multiply
    18,084,013.10x = 27,129,008.55 × 8,378,325.80
  4. Step 4: Simplify right side
    18,084,013.10x = 227,295,672,262,885.59
  5. Step 5: Solve for x
    x = 227,295,672,262,885.59/18,084,013.10
  6. Step 6: Final answer
    x = 12,568,873.46

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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.