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Finding the Third Proportional to 7,917,751.50 and 12,240,228

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Solution

The third proportional to 7,917,751.50 and 12,240,228 is: 18,922,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917,751.50 : 12,240,228 = 12,240,228 : x
  2. Step 2: Convert to fraction form
    7,917,751.50/12,240,228 = 12,240,228/x
  3. Step 3: Cross multiply
    7,917,751.50x = 12,240,228 × 12,240,228
  4. Step 4: Simplify right side
    7,917,751.50x = 149,823,181,491,984
  5. Step 5: Solve for x
    x = 149,823,181,491,984/7,917,751.50
  6. Step 6: Final answer
    x = 18,922,440.48

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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.