Home / 100,919,205.68-139,268,601.54-54,509,458.84

Finding the Fourth Proportional to 100,919,205.68, 139,268,601.54 and 54,509,458.84

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Solution

The fourth proportional to 100,919,205.68, 139,268,601.54 and 54,509,458.84 is: 75,223,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,919,205.68 : 139,268,601.54 = 54,509,458.84 : x
  2. Step 2: Convert to fraction form
    100,919,205.68/139,268,601.54 = 54,509,458.84/x
  3. Step 3: Cross multiply
    100,919,205.68x = 139,268,601.54 × 54,509,458.84
  4. Step 4: Simplify right side
    100,919,205.68x = 7,591,456,103,348,991
  5. Step 5: Solve for x
    x = 7,591,456,103,348,991/100,919,205.68
  6. Step 6: Final answer
    x = 75,223,105.97

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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.