Home / 10,922,521.70-15,078,746.38-7,979,033.61

Finding the Fourth Proportional to 10,922,521.70, 15,078,746.38 and 7,979,033.61

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Solution

The fourth proportional to 10,922,521.70, 15,078,746.38 and 7,979,033.61 is: 11,015,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922,521.70 : 15,078,746.38 = 7,979,033.61 : x
  2. Step 2: Convert to fraction form
    10,922,521.70/15,078,746.38 = 7,979,033.61/x
  3. Step 3: Cross multiply
    10,922,521.70x = 15,078,746.38 × 7,979,033.61
  4. Step 4: Simplify right side
    10,922,521.70x = 120,313,824,122,790.67
  5. Step 5: Solve for x
    x = 120,313,824,122,790.67/10,922,521.70
  6. Step 6: Final answer
    x = 11,015,205.78

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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.