Home / 6,887,485.65-9,517,839.09-5,165,616.81

Finding the Fourth Proportional to 6,887,485.65, 9,517,839.09 and 5,165,616.81

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Solution

The fourth proportional to 6,887,485.65, 9,517,839.09 and 5,165,616.81 is: 7,138,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887,485.65 : 9,517,839.09 = 5,165,616.81 : x
  2. Step 2: Convert to fraction form
    6,887,485.65/9,517,839.09 = 5,165,616.81/x
  3. Step 3: Cross multiply
    6,887,485.65x = 9,517,839.09 × 5,165,616.81
  4. Step 4: Simplify right side
    6,887,485.65x = 49,165,509,598,179.10
  5. Step 5: Solve for x
    x = 49,165,509,598,179.10/6,887,485.65
  6. Step 6: Final answer
    x = 7,138,382.87

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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.