Home / 12,921,701.19-17,832,067.22-7,120,690.52

Finding the Fourth Proportional to 12,921,701.19, 17,832,067.22 and 7,120,690.52

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Solution

The fourth proportional to 12,921,701.19, 17,832,067.22 and 7,120,690.52 is: 9,826,618.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,701.19 : 17,832,067.22 = 7,120,690.52 : x
  2. Step 2: Convert to fraction form
    12,921,701.19/17,832,067.22 = 7,120,690.52/x
  3. Step 3: Cross multiply
    12,921,701.19x = 17,832,067.22 × 7,120,690.52
  4. Step 4: Simplify right side
    12,921,701.19x = 126,976,632,005,456.73
  5. Step 5: Solve for x
    x = 126,976,632,005,456.73/12,921,701.19
  6. Step 6: Final answer
    x = 9,826,618.81

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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.