Home / 7,980,218.25-12,382,022.75

Finding the Third Proportional to 7,980,218.25 and 12,382,022.75

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Solution

The third proportional to 7,980,218.25 and 12,382,022.75 is: 19,211,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980,218.25 : 12,382,022.75 = 12,382,022.75 : x
  2. Step 2: Convert to fraction form
    7,980,218.25/12,382,022.75 = 12,382,022.75/x
  3. Step 3: Cross multiply
    7,980,218.25x = 12,382,022.75 × 12,382,022.75
  4. Step 4: Simplify right side
    7,980,218.25x = 153,314,487,381,517.56
  5. Step 5: Solve for x
    x = 153,314,487,381,517.56/7,980,218.25
  6. Step 6: Final answer
    x = 19,211,816.34

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.