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Finding the Third Proportional to 18,587,728 and 40,263,500

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Solution

The third proportional to 18,587,728 and 40,263,500 is: 87,216,115.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587,728 : 40,263,500 = 40,263,500 : x
  2. Step 2: Convert to fraction form
    18,587,728/40,263,500 = 40,263,500/x
  3. Step 3: Cross multiply
    18,587,728x = 40,263,500 × 40,263,500
  4. Step 4: Simplify right side
    18,587,728x = 1,621,149,432,250,000
  5. Step 5: Solve for x
    x = 1,621,149,432,250,000/18,587,728
  6. Step 6: Final answer
    x = 87,216,115.51

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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.