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Finding the Third Proportional to 3,918,216.75 and 8,310,528.25

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Solution

The third proportional to 3,918,216.75 and 8,310,528.25 is: 17,626,610.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,216.75 : 8,310,528.25 = 8,310,528.25 : x
  2. Step 2: Convert to fraction form
    3,918,216.75/8,310,528.25 = 8,310,528.25/x
  3. Step 3: Cross multiply
    3,918,216.75x = 8,310,528.25 × 8,310,528.25
  4. Step 4: Simplify right side
    3,918,216.75x = 69,064,879,794,048.06
  5. Step 5: Solve for x
    x = 69,064,879,794,048.06/3,918,216.75
  6. Step 6: Final answer
    x = 17,626,610.32

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.