Home / 7,240,997.26-9,992,582.78-3,978,023.36

Finding the Fourth Proportional to 7,240,997.26, 9,992,582.78 and 3,978,023.36

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Solution

The fourth proportional to 7,240,997.26, 9,992,582.78 and 3,978,023.36 is: 5,489,675.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240,997.26 : 9,992,582.78 = 3,978,023.36 : x
  2. Step 2: Convert to fraction form
    7,240,997.26/9,992,582.78 = 3,978,023.36/x
  3. Step 3: Cross multiply
    7,240,997.26x = 9,992,582.78 × 3,978,023.36
  4. Step 4: Simplify right side
    7,240,997.26x = 39,750,727,730,665.08
  5. Step 5: Solve for x
    x = 39,750,727,730,665.08/7,240,997.26
  6. Step 6: Final answer
    x = 5,489,675.84

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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.