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Finding the Third Proportional to 13,345,845 and 20,018,781

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Solution

The third proportional to 13,345,845 and 20,018,781 is: 30,028,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345,845 : 20,018,781 = 20,018,781 : x
  2. Step 2: Convert to fraction form
    13,345,845/20,018,781 = 20,018,781/x
  3. Step 3: Cross multiply
    13,345,845x = 20,018,781 × 20,018,781
  4. Step 4: Simplify right side
    13,345,845x = 400,751,592,725,961
  5. Step 5: Solve for x
    x = 400,751,592,725,961/13,345,845
  6. Step 6: Final answer
    x = 30,028,191.75

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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.