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Finding the Third Proportional to 136,608,407 and 209,847,223

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Solution

The third proportional to 136,608,407 and 209,847,223 is: 322,351,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,608,407 : 209,847,223 = 209,847,223 : x
  2. Step 2: Convert to fraction form
    136,608,407/209,847,223 = 209,847,223/x
  3. Step 3: Cross multiply
    136,608,407x = 209,847,223 × 209,847,223
  4. Step 4: Simplify right side
    136,608,407x = 44,035,857,000,811,728
  5. Step 5: Solve for x
    x = 44,035,857,000,811,728/136,608,407
  6. Step 6: Final answer
    x = 322,351,002.90

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.