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Finding the Third Proportional to 12,459,890 and 18,216,795

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Solution

The third proportional to 12,459,890 and 18,216,795 is: 26,633,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,890 : 18,216,795 = 18,216,795 : x
  2. Step 2: Convert to fraction form
    12,459,890/18,216,795 = 18,216,795/x
  3. Step 3: Cross multiply
    12,459,890x = 18,216,795 × 18,216,795
  4. Step 4: Simplify right side
    12,459,890x = 331,851,620,072,025
  5. Step 5: Solve for x
    x = 331,851,620,072,025/12,459,890
  6. Step 6: Final answer
    x = 26,633,591.47

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.