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Finding the Third Proportional to 4,215,666 and 9,070,719

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Solution

The third proportional to 4,215,666 and 9,070,719 is: 19,517,187.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215,666 : 9,070,719 = 9,070,719 : x
  2. Step 2: Convert to fraction form
    4,215,666/9,070,719 = 9,070,719/x
  3. Step 3: Cross multiply
    4,215,666x = 9,070,719 × 9,070,719
  4. Step 4: Simplify right side
    4,215,666x = 82,277,943,176,961
  5. Step 5: Solve for x
    x = 82,277,943,176,961/4,215,666
  6. Step 6: Final answer
    x = 19,517,187.36

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.