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Finding the Third Proportional to 3,867,376.50 and 8,422,929

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Solution

The third proportional to 3,867,376.50 and 8,422,929 is: 18,344,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867,376.50 : 8,422,929 = 8,422,929 : x
  2. Step 2: Convert to fraction form
    3,867,376.50/8,422,929 = 8,422,929/x
  3. Step 3: Cross multiply
    3,867,376.50x = 8,422,929 × 8,422,929
  4. Step 4: Simplify right side
    3,867,376.50x = 70,945,732,939,041
  5. Step 5: Solve for x
    x = 70,945,732,939,041/3,867,376.50
  6. Step 6: Final answer
    x = 18,344,666.71

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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.