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Finding the Third Proportional to 3,960,371,028 and 8,392,910,778

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Solution

The third proportional to 3,960,371,028 and 8,392,910,778 is: 17,786,452,539.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960,371,028 : 8,392,910,778 = 8,392,910,778 : x
  2. Step 2: Convert to fraction form
    3,960,371,028/8,392,910,778 = 8,392,910,778/x
  3. Step 3: Cross multiply
    3,960,371,028x = 8,392,910,778 × 8,392,910,778
  4. Step 4: Simplify right side
    3,960,371,028x = 70,440,951,327,468,568,576
  5. Step 5: Solve for x
    x = 70,440,951,327,468,568,576/3,960,371,028
  6. Step 6: Final answer
    x = 17,786,452,539.28

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.