Home / 7,218,568.36-9,961,626.75-3,955,356.60

Finding the Fourth Proportional to 7,218,568.36, 9,961,626.75 and 3,955,356.60

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Solution

The fourth proportional to 7,218,568.36, 9,961,626.75 and 3,955,356.60 is: 5,458,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,568.36 : 9,961,626.75 = 3,955,356.60 : x
  2. Step 2: Convert to fraction form
    7,218,568.36/9,961,626.75 = 3,955,356.60/x
  3. Step 3: Cross multiply
    7,218,568.36x = 9,961,626.75 × 3,955,356.60
  4. Step 4: Simplify right side
    7,218,568.36x = 39,401,786,042,764.13
  5. Step 5: Solve for x
    x = 39,401,786,042,764.13/7,218,568.36
  6. Step 6: Final answer
    x = 5,458,393.42

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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.