Home / 6,889,628.91-9,507,069.92-3,989,215.54

Finding the Fourth Proportional to 6,889,628.91, 9,507,069.92 and 3,989,215.54

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Solution

The fourth proportional to 6,889,628.91, 9,507,069.92 and 3,989,215.54 is: 5,504,759.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889,628.91 : 9,507,069.92 = 3,989,215.54 : x
  2. Step 2: Convert to fraction form
    6,889,628.91/9,507,069.92 = 3,989,215.54/x
  3. Step 3: Cross multiply
    6,889,628.91x = 9,507,069.92 × 3,989,215.54
  4. Step 4: Simplify right side
    6,889,628.91x = 37,925,751,050,935.92
  5. Step 5: Solve for x
    x = 37,925,751,050,935.92/6,889,628.91
  6. Step 6: Final answer
    x = 5,504,759.62

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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.