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Finding the Third Proportional to 12,921,300 and 20,017,233

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Solution

The third proportional to 12,921,300 and 20,017,233 is: 31,010,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,300 : 20,017,233 = 20,017,233 : x
  2. Step 2: Convert to fraction form
    12,921,300/20,017,233 = 20,017,233/x
  3. Step 3: Cross multiply
    12,921,300x = 20,017,233 × 20,017,233
  4. Step 4: Simplify right side
    12,921,300x = 400,689,616,976,289
  5. Step 5: Solve for x
    x = 400,689,616,976,289/12,921,300
  6. Step 6: Final answer
    x = 31,010,008.05

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.