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Finding the Third Proportional to 67,690,608 and 131,980,512

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Solution

The third proportional to 67,690,608 and 131,980,512 is: 257,330,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,690,608 : 131,980,512 = 131,980,512 : x
  2. Step 2: Convert to fraction form
    67,690,608/131,980,512 = 131,980,512/x
  3. Step 3: Cross multiply
    67,690,608x = 131,980,512 × 131,980,512
  4. Step 4: Simplify right side
    67,690,608x = 17,418,855,547,782,144
  5. Step 5: Solve for x
    x = 17,418,855,547,782,144/67,690,608
  6. Step 6: Final answer
    x = 257,330,463.74

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.