Home / 11,978,538.72-17,965,161-3,457,021.20

Finding the Fourth Proportional to 11,978,538.72, 17,965,161 and 3,457,021.20

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Solution

The fourth proportional to 11,978,538.72, 17,965,161 and 3,457,021.20 is: 5,184,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,978,538.72 : 17,965,161 = 3,457,021.20 : x
  2. Step 2: Convert to fraction form
    11,978,538.72/17,965,161 = 3,457,021.20/x
  3. Step 3: Cross multiply
    11,978,538.72x = 17,965,161 × 3,457,021.20
  4. Step 4: Simplify right side
    11,978,538.72x = 62,105,942,438,413.20
  5. Step 5: Solve for x
    x = 62,105,942,438,413.20/11,978,538.72
  6. Step 6: Final answer
    x = 5,184,767.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.