Home / 7,222,986.80-9,967,505.76-3,959,689.92

Finding the Fourth Proportional to 7,222,986.80, 9,967,505.76 and 3,959,689.92

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Solution

The fourth proportional to 7,222,986.80, 9,967,505.76 and 3,959,689.92 is: 5,464,253.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222,986.80 : 9,967,505.76 = 3,959,689.92 : x
  2. Step 2: Convert to fraction form
    7,222,986.80/9,967,505.76 = 3,959,689.92/x
  3. Step 3: Cross multiply
    7,222,986.80x = 9,967,505.76 × 3,959,689.92
  4. Step 4: Simplify right side
    7,222,986.80x = 39,468,232,085,413.94
  5. Step 5: Solve for x
    x = 39,468,232,085,413.94/7,222,986.80
  6. Step 6: Final answer
    x = 5,464,253.66

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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.