Home / 12,378,771.36-18,546,189.82-5,174,424

Finding the Fourth Proportional to 12,378,771.36, 18,546,189.82 and 5,174,424

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Solution

The fourth proportional to 12,378,771.36, 18,546,189.82 and 5,174,424 is: 7,752,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,771.36 : 18,546,189.82 = 5,174,424 : x
  2. Step 2: Convert to fraction form
    12,378,771.36/18,546,189.82 = 5,174,424/x
  3. Step 3: Cross multiply
    12,378,771.36x = 18,546,189.82 × 5,174,424
  4. Step 4: Simplify right side
    12,378,771.36x = 95,965,849,713,163.69
  5. Step 5: Solve for x
    x = 95,965,849,713,163.69/12,378,771.36
  6. Step 6: Final answer
    x = 7,752,453.53

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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.