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Finding the Third Proportional to 13,809,688 and 20,772,188

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Solution

The third proportional to 13,809,688 and 20,772,188 is: 31,245,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809,688 : 20,772,188 = 20,772,188 : x
  2. Step 2: Convert to fraction form
    13,809,688/20,772,188 = 20,772,188/x
  3. Step 3: Cross multiply
    13,809,688x = 20,772,188 × 20,772,188
  4. Step 4: Simplify right side
    13,809,688x = 431,483,794,307,344
  5. Step 5: Solve for x
    x = 431,483,794,307,344/13,809,688
  6. Step 6: Final answer
    x = 31,245,006.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.