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Finding the Third Proportional to 638,327,620 and 1,385,611,307

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Solution

The third proportional to 638,327,620 and 1,385,611,307 is: 3,007,732,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,327,620 : 1,385,611,307 = 1,385,611,307 : x
  2. Step 2: Convert to fraction form
    638,327,620/1,385,611,307 = 1,385,611,307/x
  3. Step 3: Cross multiply
    638,327,620x = 1,385,611,307 × 1,385,611,307
  4. Step 4: Simplify right side
    638,327,620x = 1,919,918,694,086,248,192
  5. Step 5: Solve for x
    x = 1,919,918,694,086,248,192/638,327,620
  6. Step 6: Final answer
    x = 3,007,732,446.37

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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.