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Finding the Third Proportional to 8,389,380 and 18,379,422

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Solution

The third proportional to 8,389,380 and 18,379,422 is: 40,265,568.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389,380 : 18,379,422 = 18,379,422 : x
  2. Step 2: Convert to fraction form
    8,389,380/18,379,422 = 18,379,422/x
  3. Step 3: Cross multiply
    8,389,380x = 18,379,422 × 18,379,422
  4. Step 4: Simplify right side
    8,389,380x = 337,803,153,054,084
  5. Step 5: Solve for x
    x = 337,803,153,054,084/8,389,380
  6. Step 6: Final answer
    x = 40,265,568.26

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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.