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Finding the Third Proportional to 18,562,642 and 39,867,296

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Solution

The third proportional to 18,562,642 and 39,867,296 is: 85,623,656.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562,642 : 39,867,296 = 39,867,296 : x
  2. Step 2: Convert to fraction form
    18,562,642/39,867,296 = 39,867,296/x
  3. Step 3: Cross multiply
    18,562,642x = 39,867,296 × 39,867,296
  4. Step 4: Simplify right side
    18,562,642x = 1,589,401,290,351,616
  5. Step 5: Solve for x
    x = 1,589,401,290,351,616/18,562,642
  6. Step 6: Final answer
    x = 85,623,656.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.