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Finding the Third Proportional to 13,242,298 and 20,512,987

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Solution

The third proportional to 13,242,298 and 20,512,987 is: 31,775,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242,298 : 20,512,987 = 20,512,987 : x
  2. Step 2: Convert to fraction form
    13,242,298/20,512,987 = 20,512,987/x
  3. Step 3: Cross multiply
    13,242,298x = 20,512,987 × 20,512,987
  4. Step 4: Simplify right side
    13,242,298x = 420,782,635,662,169
  5. Step 5: Solve for x
    x = 420,782,635,662,169/13,242,298
  6. Step 6: Final answer
    x = 31,775,650.70

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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.