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Finding the Third Proportional to 12,515,986 and 25,991,200

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Solution

The third proportional to 12,515,986 and 25,991,200 is: 53,974,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515,986 : 25,991,200 = 25,991,200 : x
  2. Step 2: Convert to fraction form
    12,515,986/25,991,200 = 25,991,200/x
  3. Step 3: Cross multiply
    12,515,986x = 25,991,200 × 25,991,200
  4. Step 4: Simplify right side
    12,515,986x = 675,542,477,440,000
  5. Step 5: Solve for x
    x = 675,542,477,440,000/12,515,986
  6. Step 6: Final answer
    x = 53,974,371.45

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.