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Finding the Third Proportional to 8,420,744 and 18,521,104

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Solution

The third proportional to 8,420,744 and 18,521,104 is: 40,736,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,744 : 18,521,104 = 18,521,104 : x
  2. Step 2: Convert to fraction form
    8,420,744/18,521,104 = 18,521,104/x
  3. Step 3: Cross multiply
    8,420,744x = 18,521,104 × 18,521,104
  4. Step 4: Simplify right side
    8,420,744x = 343,031,293,378,816
  5. Step 5: Solve for x
    x = 343,031,293,378,816/8,420,744
  6. Step 6: Final answer
    x = 40,736,459.08

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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.