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Finding the Third Proportional to 8,519,620 and 18,338,324

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Solution

The third proportional to 8,519,620 and 18,338,324 is: 39,472,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519,620 : 18,338,324 = 18,338,324 : x
  2. Step 2: Convert to fraction form
    8,519,620/18,338,324 = 18,338,324/x
  3. Step 3: Cross multiply
    8,519,620x = 18,338,324 × 18,338,324
  4. Step 4: Simplify right side
    8,519,620x = 336,294,127,128,976
  5. Step 5: Solve for x
    x = 336,294,127,128,976/8,519,620
  6. Step 6: Final answer
    x = 39,472,902.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.