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Finding the Third Proportional to 4,215,645 and 9,070,679.25

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Solution

The third proportional to 4,215,645 and 9,070,679.25 is: 19,517,113.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215,645 : 9,070,679.25 = 9,070,679.25 : x
  2. Step 2: Convert to fraction form
    4,215,645/9,070,679.25 = 9,070,679.25/x
  3. Step 3: Cross multiply
    4,215,645x = 9,070,679.25 × 9,070,679.25
  4. Step 4: Simplify right side
    4,215,645x = 82,277,222,056,380.56
  5. Step 5: Solve for x
    x = 82,277,222,056,380.56/4,215,645
  6. Step 6: Final answer
    x = 19,517,113.53

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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.