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Finding the Third Proportional to 18,920,172 and 41,502,912

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Solution

The third proportional to 18,920,172 and 41,502,912 is: 91,039,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920,172 : 41,502,912 = 41,502,912 : x
  2. Step 2: Convert to fraction form
    18,920,172/41,502,912 = 41,502,912/x
  3. Step 3: Cross multiply
    18,920,172x = 41,502,912 × 41,502,912
  4. Step 4: Simplify right side
    18,920,172x = 1,722,491,704,479,744
  5. Step 5: Solve for x
    x = 1,722,491,704,479,744/18,920,172
  6. Step 6: Final answer
    x = 91,039,960.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.