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Finding the Third Proportional to 18,920,280 and 29,231,520

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Solution

The third proportional to 18,920,280 and 29,231,520 is: 45,162,215.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920,280 : 29,231,520 = 29,231,520 : x
  2. Step 2: Convert to fraction form
    18,920,280/29,231,520 = 29,231,520/x
  3. Step 3: Cross multiply
    18,920,280x = 29,231,520 × 29,231,520
  4. Step 4: Simplify right side
    18,920,280x = 854,481,761,510,400
  5. Step 5: Solve for x
    x = 854,481,761,510,400/18,920,280
  6. Step 6: Final answer
    x = 45,162,215.44

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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.