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Finding the Third Proportional to 18,591,642 and 40,270,608

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Solution

The third proportional to 18,591,642 and 40,270,608 is: 87,228,544.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591,642 : 40,270,608 = 40,270,608 : x
  2. Step 2: Convert to fraction form
    18,591,642/40,270,608 = 40,270,608/x
  3. Step 3: Cross multiply
    18,591,642x = 40,270,608 × 40,270,608
  4. Step 4: Simplify right side
    18,591,642x = 1,621,721,868,689,664
  5. Step 5: Solve for x
    x = 1,621,721,868,689,664/18,591,642
  6. Step 6: Final answer
    x = 87,228,544.35

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.