Home / 205,493,993.82-283,622,909.31-121,908,519.54

Finding the Fourth Proportional to 205,493,993.82, 283,622,909.31 and 121,908,519.54

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Solution

The fourth proportional to 205,493,993.82, 283,622,909.31 and 121,908,519.54 is: 168,258,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,493,993.82 : 283,622,909.31 = 121,908,519.54 : x
  2. Step 2: Convert to fraction form
    205,493,993.82/283,622,909.31 = 121,908,519.54/x
  3. Step 3: Cross multiply
    205,493,993.82x = 283,622,909.31 × 121,908,519.54
  4. Step 4: Simplify right side
    205,493,993.82x = 34,576,048,981,609,784
  5. Step 5: Solve for x
    x = 34,576,048,981,609,784/205,493,993.82
  6. Step 6: Final answer
    x = 168,258,197.42

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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.