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Finding the Third Proportional to 8,180,640 and 12,804,912

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Solution

The third proportional to 8,180,640 and 12,804,912 is: 20,043,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180,640 : 12,804,912 = 12,804,912 : x
  2. Step 2: Convert to fraction form
    8,180,640/12,804,912 = 12,804,912/x
  3. Step 3: Cross multiply
    8,180,640x = 12,804,912 × 12,804,912
  4. Step 4: Simplify right side
    8,180,640x = 163,965,771,327,744
  5. Step 5: Solve for x
    x = 163,965,771,327,744/8,180,640
  6. Step 6: Final answer
    x = 20,043,147.15

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.