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Finding the Third Proportional to 8,519,420 and 18,337,918

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Solution

The third proportional to 8,519,420 and 18,337,918 is: 39,472,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519,420 : 18,337,918 = 18,337,918 : x
  2. Step 2: Convert to fraction form
    8,519,420/18,337,918 = 18,337,918/x
  3. Step 3: Cross multiply
    8,519,420x = 18,337,918 × 18,337,918
  4. Step 4: Simplify right side
    8,519,420x = 336,279,236,574,724
  5. Step 5: Solve for x
    x = 336,279,236,574,724/8,519,420
  6. Step 6: Final answer
    x = 39,472,081.03

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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.