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Finding the Third Proportional to 81,628,344 and 179,179,992

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Solution

The third proportional to 81,628,344 and 179,179,992 is: 393,312,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,628,344 : 179,179,992 = 179,179,992 : x
  2. Step 2: Convert to fraction form
    81,628,344/179,179,992 = 179,179,992/x
  3. Step 3: Cross multiply
    81,628,344x = 179,179,992 × 179,179,992
  4. Step 4: Simplify right side
    81,628,344x = 32,105,469,533,120,064
  5. Step 5: Solve for x
    x = 32,105,469,533,120,064/81,628,344
  6. Step 6: Final answer
    x = 393,312,763.19

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.