Home / 12,946,634.88-17,866,268.16-7,145,416.56

Finding the Fourth Proportional to 12,946,634.88, 17,866,268.16 and 7,145,416.56

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Solution

The fourth proportional to 12,946,634.88, 17,866,268.16 and 7,145,416.56 is: 9,860,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,634.88 : 17,866,268.16 = 7,145,416.56 : x
  2. Step 2: Convert to fraction form
    12,946,634.88/17,866,268.16 = 7,145,416.56/x
  3. Step 3: Cross multiply
    12,946,634.88x = 17,866,268.16 × 7,145,416.56
  4. Step 4: Simplify right side
    12,946,634.88x = 127,661,928,375,864.72
  5. Step 5: Solve for x
    x = 127,661,928,375,864.72/12,946,634.88
  6. Step 6: Final answer
    x = 9,860,626.30

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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.