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Finding the Third Proportional to 18,192,972 and 39,530,688

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Solution

The third proportional to 18,192,972 and 39,530,688 is: 85,894,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192,972 : 39,530,688 = 39,530,688 : x
  2. Step 2: Convert to fraction form
    18,192,972/39,530,688 = 39,530,688/x
  3. Step 3: Cross multiply
    18,192,972x = 39,530,688 × 39,530,688
  4. Step 4: Simplify right side
    18,192,972x = 1,562,675,293,753,344
  5. Step 5: Solve for x
    x = 1,562,675,293,753,344/18,192,972
  6. Step 6: Final answer
    x = 85,894,448.35

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.