Home / 18,500,114.43-27,740,610.45-8,121,085.65

Finding the Fourth Proportional to 18,500,114.43, 27,740,610.45 and 8,121,085.65

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Solution

The fourth proportional to 18,500,114.43, 27,740,610.45 and 8,121,085.65 is: 12,177,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500,114.43 : 27,740,610.45 = 8,121,085.65 : x
  2. Step 2: Convert to fraction form
    18,500,114.43/27,740,610.45 = 8,121,085.65/x
  3. Step 3: Cross multiply
    18,500,114.43x = 27,740,610.45 × 8,121,085.65
  4. Step 4: Simplify right side
    18,500,114.43x = 225,283,873,447,735.03
  5. Step 5: Solve for x
    x = 225,283,873,447,735.03/18,500,114.43
  6. Step 6: Final answer
    x = 12,177,431.35

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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.