Home / 7,912,791.78-11,871,183.51-3,655,969.62

Finding the Fourth Proportional to 7,912,791.78, 11,871,183.51 and 3,655,969.62

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Solution

The fourth proportional to 7,912,791.78, 11,871,183.51 and 3,655,969.62 is: 5,484,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912,791.78 : 11,871,183.51 = 3,655,969.62 : x
  2. Step 2: Convert to fraction form
    7,912,791.78/11,871,183.51 = 3,655,969.62/x
  3. Step 3: Cross multiply
    7,912,791.78x = 11,871,183.51 × 3,655,969.62
  4. Step 4: Simplify right side
    7,912,791.78x = 43,400,686,266,004.97
  5. Step 5: Solve for x
    x = 43,400,686,266,004.97/7,912,791.78
  6. Step 6: Final answer
    x = 5,484,876.57

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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.