Home / 8,071,928.57-11,136,466.94-5,172,917.92

Finding the Fourth Proportional to 8,071,928.57, 11,136,466.94 and 5,172,917.92

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Solution

The fourth proportional to 8,071,928.57, 11,136,466.94 and 5,172,917.92 is: 7,136,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071,928.57 : 11,136,466.94 = 5,172,917.92 : x
  2. Step 2: Convert to fraction form
    8,071,928.57/11,136,466.94 = 5,172,917.92/x
  3. Step 3: Cross multiply
    8,071,928.57x = 11,136,466.94 × 5,172,917.92
  4. Step 4: Simplify right side
    8,071,928.57x = 57,608,029,399,413.56
  5. Step 5: Solve for x
    x = 57,608,029,399,413.56/8,071,928.57
  6. Step 6: Final answer
    x = 7,136,835.88

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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.