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Finding the Third Proportional to 18,939,432 and 41,739,648

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Solution

The third proportional to 18,939,432 and 41,739,648 is: 91,987,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939,432 : 41,739,648 = 41,739,648 : x
  2. Step 2: Convert to fraction form
    18,939,432/41,739,648 = 41,739,648/x
  3. Step 3: Cross multiply
    18,939,432x = 41,739,648 × 41,739,648
  4. Step 4: Simplify right side
    18,939,432x = 1,742,198,215,163,904
  5. Step 5: Solve for x
    x = 1,742,198,215,163,904/18,939,432
  6. Step 6: Final answer
    x = 91,987,880.90

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.