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Finding the Third Proportional to 18,449,328 and 28,640,919

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Solution

The third proportional to 18,449,328 and 28,640,919 is: 44,462,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449,328 : 28,640,919 = 28,640,919 : x
  2. Step 2: Convert to fraction form
    18,449,328/28,640,919 = 28,640,919/x
  3. Step 3: Cross multiply
    18,449,328x = 28,640,919 × 28,640,919
  4. Step 4: Simplify right side
    18,449,328x = 820,302,241,164,561
  5. Step 5: Solve for x
    x = 820,302,241,164,561/18,449,328
  6. Step 6: Final answer
    x = 44,462,445.52

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.