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Finding the Third Proportional to 21,043,656 and 45,220,184

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Solution

The third proportional to 21,043,656 and 45,220,184 is: 97,172,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043,656 : 45,220,184 = 45,220,184 : x
  2. Step 2: Convert to fraction form
    21,043,656/45,220,184 = 45,220,184/x
  3. Step 3: Cross multiply
    21,043,656x = 45,220,184 × 45,220,184
  4. Step 4: Simplify right side
    21,043,656x = 2,044,865,040,993,856
  5. Step 5: Solve for x
    x = 2,044,865,040,993,856/21,043,656
  6. Step 6: Final answer
    x = 97,172,517.98

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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.