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Finding the Third Proportional to 12,218,454 and 18,116,259

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Solution

The third proportional to 12,218,454 and 18,116,259 is: 26,860,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218,454 : 18,116,259 = 18,116,259 : x
  2. Step 2: Convert to fraction form
    12,218,454/18,116,259 = 18,116,259/x
  3. Step 3: Cross multiply
    12,218,454x = 18,116,259 × 18,116,259
  4. Step 4: Simplify right side
    12,218,454x = 328,198,840,155,081
  5. Step 5: Solve for x
    x = 328,198,840,155,081/12,218,454
  6. Step 6: Final answer
    x = 26,860,913.84

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.