Home / 12,785,828.80-19,162,413.60-5,204,228.80

Finding the Fourth Proportional to 12,785,828.80, 19,162,413.60 and 5,204,228.80

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Solution

The fourth proportional to 12,785,828.80, 19,162,413.60 and 5,204,228.80 is: 7,799,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,828.80 : 19,162,413.60 = 5,204,228.80 : x
  2. Step 2: Convert to fraction form
    12,785,828.80/19,162,413.60 = 5,204,228.80/x
  3. Step 3: Cross multiply
    12,785,828.80x = 19,162,413.60 × 5,204,228.80
  4. Step 4: Simplify right side
    12,785,828.80x = 99,725,584,734,631.69
  5. Step 5: Solve for x
    x = 99,725,584,734,631.69/12,785,828.80
  6. Step 6: Final answer
    x = 7,799,696.55

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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.