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Finding the Third Proportional to 3,975,559 and 8,732,128

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Solution

The third proportional to 3,975,559 and 8,732,128 is: 19,179,707.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975,559 : 8,732,128 = 8,732,128 : x
  2. Step 2: Convert to fraction form
    3,975,559/8,732,128 = 8,732,128/x
  3. Step 3: Cross multiply
    3,975,559x = 8,732,128 × 8,732,128
  4. Step 4: Simplify right side
    3,975,559x = 76,250,059,408,384
  5. Step 5: Solve for x
    x = 76,250,059,408,384/3,975,559
  6. Step 6: Final answer
    x = 19,179,707.66

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.