Home / 13,665,944.39-18,858,104.57-7,863,789.65

Finding the Fourth Proportional to 13,665,944.39, 18,858,104.57 and 7,863,789.65

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Solution

The fourth proportional to 13,665,944.39, 18,858,104.57 and 7,863,789.65 is: 10,851,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665,944.39 : 18,858,104.57 = 7,863,789.65 : x
  2. Step 2: Convert to fraction form
    13,665,944.39/18,858,104.57 = 7,863,789.65/x
  3. Step 3: Cross multiply
    13,665,944.39x = 18,858,104.57 × 7,863,789.65
  4. Step 4: Simplify right side
    13,665,944.39x = 148,296,167,461,552.66
  5. Step 5: Solve for x
    x = 148,296,167,461,552.66/13,665,944.39
  6. Step 6: Final answer
    x = 10,851,512.58

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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.