Home / 7,231,693.80-9,979,859.94-3,968,812.11

Finding the Fourth Proportional to 7,231,693.80, 9,979,859.94 and 3,968,812.11

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Solution

The fourth proportional to 7,231,693.80, 9,979,859.94 and 3,968,812.11 is: 5,477,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,693.80 : 9,979,859.94 = 3,968,812.11 : x
  2. Step 2: Convert to fraction form
    7,231,693.80/9,979,859.94 = 3,968,812.11/x
  3. Step 3: Cross multiply
    7,231,693.80x = 9,979,859.94 × 3,968,812.11
  4. Step 4: Simplify right side
    7,231,693.80x = 39,608,188,985,975.87
  5. Step 5: Solve for x
    x = 39,608,188,985,975.87/7,231,693.80
  6. Step 6: Final answer
    x = 5,477,027.94

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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.