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Finding the Third Proportional to 18,512,218,376 and 28,201,451,972

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Solution

The third proportional to 18,512,218,376 and 28,201,451,972 is: 42,961,998,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512,218,376 : 28,201,451,972 = 28,201,451,972 : x
  2. Step 2: Convert to fraction form
    18,512,218,376/28,201,451,972 = 28,201,451,972/x
  3. Step 3: Cross multiply
    18,512,218,376x = 28,201,451,972 × 28,201,451,972
  4. Step 4: Simplify right side
    18,512,218,376x = 795,321,893,329,022,746,624
  5. Step 5: Solve for x
    x = 795,321,893,329,022,746,624/18,512,218,376
  6. Step 6: Final answer
    x = 42,961,998,242.20

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.