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Finding the Third Proportional to 18,900.09 and 40,601.91

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Solution

The third proportional to 18,900.09 and 40,601.91 is: 87,222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.09 : 40,601.91 = 40,601.91 : x
  2. Step 2: Convert to fraction form
    18,900.09/40,601.91 = 40,601.91/x
  3. Step 3: Cross multiply
    18,900.09x = 40,601.91 × 40,601.91
  4. Step 4: Simplify right side
    18,900.09x = 1,648,514,791.13
  5. Step 5: Solve for x
    x = 1,648,514,791.13/18,900.09
  6. Step 6: Final answer
    x = 87,222.57

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.