Home / 7,190,920.83-9,923,411.77-3,927,737.61

Finding the Fourth Proportional to 7,190,920.83, 9,923,411.77 and 3,927,737.61

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Solution

The fourth proportional to 7,190,920.83, 9,923,411.77 and 3,927,737.61 is: 5,420,245.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190,920.83 : 9,923,411.77 = 3,927,737.61 : x
  2. Step 2: Convert to fraction form
    7,190,920.83/9,923,411.77 = 3,927,737.61/x
  3. Step 3: Cross multiply
    7,190,920.83x = 9,923,411.77 × 3,927,737.61
  4. Step 4: Simplify right side
    7,190,920.83x = 38,976,557,628,545.66
  5. Step 5: Solve for x
    x = 38,976,557,628,545.66/7,190,920.83
  6. Step 6: Final answer
    x = 5,420,245.69

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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.