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Finding the Third Proportional to 4,778,400 and 10,396,491

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Solution

The third proportional to 4,778,400 and 10,396,491 is: 22,619,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778,400 : 10,396,491 = 10,396,491 : x
  2. Step 2: Convert to fraction form
    4,778,400/10,396,491 = 10,396,491/x
  3. Step 3: Cross multiply
    4,778,400x = 10,396,491 × 10,396,491
  4. Step 4: Simplify right side
    4,778,400x = 108,087,025,113,081
  5. Step 5: Solve for x
    x = 108,087,025,113,081/4,778,400
  6. Step 6: Final answer
    x = 22,619,919.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.