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Finding the Third Proportional to 86,177,450 and 128,960,845

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Solution

The third proportional to 86,177,450 and 128,960,845 is: 192,984,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,177,450 : 128,960,845 = 128,960,845 : x
  2. Step 2: Convert to fraction form
    86,177,450/128,960,845 = 128,960,845/x
  3. Step 3: Cross multiply
    86,177,450x = 128,960,845 × 128,960,845
  4. Step 4: Simplify right side
    86,177,450x = 16,630,899,543,114,024
  5. Step 5: Solve for x
    x = 16,630,899,543,114,024/86,177,450
  6. Step 6: Final answer
    x = 192,984,354.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.