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Finding the Third Proportional to 220,128,920 and 479,810,384

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Solution

The third proportional to 220,128,920 and 479,810,384 is: 1,045,832,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,128,920 : 479,810,384 = 479,810,384 : x
  2. Step 2: Convert to fraction form
    220,128,920/479,810,384 = 479,810,384/x
  3. Step 3: Cross multiply
    220,128,920x = 479,810,384 × 479,810,384
  4. Step 4: Simplify right side
    220,128,920x = 230,218,004,594,227,456
  5. Step 5: Solve for x
    x = 230,218,004,594,227,456/220,128,920
  6. Step 6: Final answer
    x = 1,045,832,617.51

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.