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Finding the Third Proportional to 12,385,228 and 18,213,666

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Solution

The third proportional to 12,385,228 and 18,213,666 is: 26,784,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385,228 : 18,213,666 = 18,213,666 : x
  2. Step 2: Convert to fraction form
    12,385,228/18,213,666 = 18,213,666/x
  3. Step 3: Cross multiply
    12,385,228x = 18,213,666 × 18,213,666
  4. Step 4: Simplify right side
    12,385,228x = 331,737,629,159,556
  5. Step 5: Solve for x
    x = 331,737,629,159,556/12,385,228
  6. Step 6: Final answer
    x = 26,784,943.25

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.