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Finding the Third Proportional to 81,881,401.50 and 180,139,059

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Solution

The third proportional to 81,881,401.50 and 180,139,059 is: 396,305,876.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,881,401.50 : 180,139,059 = 180,139,059 : x
  2. Step 2: Convert to fraction form
    81,881,401.50/180,139,059 = 180,139,059/x
  3. Step 3: Cross multiply
    81,881,401.50x = 180,139,059 × 180,139,059
  4. Step 4: Simplify right side
    81,881,401.50x = 32,450,080,577,405,480
  5. Step 5: Solve for x
    x = 32,450,080,577,405,480/81,881,401.50
  6. Step 6: Final answer
    x = 396,305,876.34

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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.