Home / 7,231,915-9,979,315.86-4,331,231.56

Finding the Fourth Proportional to 7,231,915, 9,979,315.86 and 4,331,231.56

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Solution

The fourth proportional to 7,231,915, 9,979,315.86 and 4,331,231.56 is: 5,976,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,915 : 9,979,315.86 = 4,331,231.56 : x
  2. Step 2: Convert to fraction form
    7,231,915/9,979,315.86 = 4,331,231.56/x
  3. Step 3: Cross multiply
    7,231,915x = 9,979,315.86 × 4,331,231.56
  4. Step 4: Simplify right side
    7,231,915x = 43,222,727,800,040.53
  5. Step 5: Solve for x
    x = 43,222,727,800,040.53/7,231,915
  6. Step 6: Final answer
    x = 5,976,664.24

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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.