Home / 83,458,894.62-115,040,243.52-65,789,000.82

Finding the Fourth Proportional to 83,458,894.62, 115,040,243.52 and 65,789,000.82

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Solution

The fourth proportional to 83,458,894.62, 115,040,243.52 and 65,789,000.82 is: 90,683,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,458,894.62 : 115,040,243.52 = 65,789,000.82 : x
  2. Step 2: Convert to fraction form
    83,458,894.62/115,040,243.52 = 65,789,000.82/x
  3. Step 3: Cross multiply
    83,458,894.62x = 115,040,243.52 × 65,789,000.82
  4. Step 4: Simplify right side
    83,458,894.62x = 7,568,382,675,270,279
  5. Step 5: Solve for x
    x = 7,568,382,675,270,279/83,458,894.62
  6. Step 6: Final answer
    x = 90,683,955.37

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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.