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Finding the Third Proportional to 12,459,912 and 18,216,825

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Solution

The third proportional to 12,459,912 and 18,216,825 is: 26,633,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,912 : 18,216,825 = 18,216,825 : x
  2. Step 2: Convert to fraction form
    12,459,912/18,216,825 = 18,216,825/x
  3. Step 3: Cross multiply
    12,459,912x = 18,216,825 × 18,216,825
  4. Step 4: Simplify right side
    12,459,912x = 331,852,713,080,625
  5. Step 5: Solve for x
    x = 331,852,713,080,625/12,459,912
  6. Step 6: Final answer
    x = 26,633,632.17

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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.