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Finding the Third Proportional to 11,725,272 and 18,119,416

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Solution

The third proportional to 11,725,272 and 18,119,416 is: 28,000,479.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725,272 : 18,119,416 = 18,119,416 : x
  2. Step 2: Convert to fraction form
    11,725,272/18,119,416 = 18,119,416/x
  3. Step 3: Cross multiply
    11,725,272x = 18,119,416 × 18,119,416
  4. Step 4: Simplify right side
    11,725,272x = 328,313,236,181,056
  5. Step 5: Solve for x
    x = 328,313,236,181,056/11,725,272
  6. Step 6: Final answer
    x = 28,000,479.32

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.