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Finding the Third Proportional to 3,931,367.25 and 8,409,228

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Solution

The third proportional to 3,931,367.25 and 8,409,228 is: 17,987,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931,367.25 : 8,409,228 = 8,409,228 : x
  2. Step 2: Convert to fraction form
    3,931,367.25/8,409,228 = 8,409,228/x
  3. Step 3: Cross multiply
    3,931,367.25x = 8,409,228 × 8,409,228
  4. Step 4: Simplify right side
    3,931,367.25x = 70,715,115,555,984
  5. Step 5: Solve for x
    x = 70,715,115,555,984/3,931,367.25
  6. Step 6: Final answer
    x = 17,987,410.25

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.