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Finding the Third Proportional to 12,780,828 and 27,608,688

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Solution

The third proportional to 12,780,828 and 27,608,688 is: 59,639,301.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,828 : 27,608,688 = 27,608,688 : x
  2. Step 2: Convert to fraction form
    12,780,828/27,608,688 = 27,608,688/x
  3. Step 3: Cross multiply
    12,780,828x = 27,608,688 × 27,608,688
  4. Step 4: Simplify right side
    12,780,828x = 762,239,653,081,344
  5. Step 5: Solve for x
    x = 762,239,653,081,344/12,780,828
  6. Step 6: Final answer
    x = 59,639,301.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.