Home / 13,515,399.78-18,651,103.23-7,320,292.38

Finding the Fourth Proportional to 13,515,399.78, 18,651,103.23 and 7,320,292.38

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Solution

The fourth proportional to 13,515,399.78, 18,651,103.23 and 7,320,292.38 is: 10,101,923.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515,399.78 : 18,651,103.23 = 7,320,292.38 : x
  2. Step 2: Convert to fraction form
    13,515,399.78/18,651,103.23 = 7,320,292.38/x
  3. Step 3: Cross multiply
    13,515,399.78x = 18,651,103.23 × 7,320,292.38
  4. Step 4: Simplify right side
    13,515,399.78x = 136,531,528,853,162.39
  5. Step 5: Solve for x
    x = 136,531,528,853,162.39/13,515,399.78
  6. Step 6: Final answer
    x = 10,101,923.07

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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.