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Finding the Third Proportional to 145,493,799 and 315,204,198

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Solution

The third proportional to 145,493,799 and 315,204,198 is: 682,872,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,493,799 : 315,204,198 = 315,204,198 : x
  2. Step 2: Convert to fraction form
    145,493,799/315,204,198 = 315,204,198/x
  3. Step 3: Cross multiply
    145,493,799x = 315,204,198 × 315,204,198
  4. Step 4: Simplify right side
    145,493,799x = 99,353,686,436,823,200
  5. Step 5: Solve for x
    x = 99,353,686,436,823,200/145,493,799
  6. Step 6: Final answer
    x = 682,872,308.78

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.