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Finding the Third Proportional to 12,390,787 and 26,840,540

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Solution

The third proportional to 12,390,787 and 26,840,540 is: 58,141,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,787 : 26,840,540 = 26,840,540 : x
  2. Step 2: Convert to fraction form
    12,390,787/26,840,540 = 26,840,540/x
  3. Step 3: Cross multiply
    12,390,787x = 26,840,540 × 26,840,540
  4. Step 4: Simplify right side
    12,390,787x = 720,414,587,491,600
  5. Step 5: Solve for x
    x = 720,414,587,491,600/12,390,787
  6. Step 6: Final answer
    x = 58,141,148.54

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.