Home / 13,261,718.40-19,842,811.20-12,067,324.80

Finding the Fourth Proportional to 13,261,718.40, 19,842,811.20 and 12,067,324.80

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Solution

The fourth proportional to 13,261,718.40, 19,842,811.20 and 12,067,324.80 is: 18,055,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261,718.40 : 19,842,811.20 = 12,067,324.80 : x
  2. Step 2: Convert to fraction form
    13,261,718.40/19,842,811.20 = 12,067,324.80/x
  3. Step 3: Cross multiply
    13,261,718.40x = 19,842,811.20 × 12,067,324.80
  4. Step 4: Simplify right side
    13,261,718.40x = 239,449,647,695,477.78
  5. Step 5: Solve for x
    x = 239,449,647,695,477.78/13,261,718.40
  6. Step 6: Final answer
    x = 18,055,702.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.