Home / 12,787,261.07-17,647,060.32-7,824,149.64

Finding the Fourth Proportional to 12,787,261.07, 17,647,060.32 and 7,824,149.64

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Solution

The fourth proportional to 12,787,261.07, 17,647,060.32 and 7,824,149.64 is: 10,797,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787,261.07 : 17,647,060.32 = 7,824,149.64 : x
  2. Step 2: Convert to fraction form
    12,787,261.07/17,647,060.32 = 7,824,149.64/x
  3. Step 3: Cross multiply
    12,787,261.07x = 17,647,060.32 × 7,824,149.64
  4. Step 4: Simplify right side
    12,787,261.07x = 138,073,240,649,786.28
  5. Step 5: Solve for x
    x = 138,073,240,649,786.28/12,787,261.07
  6. Step 6: Final answer
    x = 10,797,718.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.