Home / 20,231,413.60-27,912,976.80-12,382,743.69

Finding the Fourth Proportional to 20,231,413.60, 27,912,976.80 and 12,382,743.69

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Solution

The fourth proportional to 20,231,413.60, 27,912,976.80 and 12,382,743.69 is: 17,084,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,413.60 : 27,912,976.80 = 12,382,743.69 : x
  2. Step 2: Convert to fraction form
    20,231,413.60/27,912,976.80 = 12,382,743.69/x
  3. Step 3: Cross multiply
    20,231,413.60x = 27,912,976.80 × 12,382,743.69
  4. Step 4: Simplify right side
    20,231,413.60x = 345,639,237,339,316.38
  5. Step 5: Solve for x
    x = 345,639,237,339,316.38/20,231,413.60
  6. Step 6: Final answer
    x = 17,084,285.07

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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.