Home / 221,216,796.80-305,256,027.60-122,095,716.48

Finding the Fourth Proportional to 221,216,796.80, 305,256,027.60 and 122,095,716.48

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Solution

The fourth proportional to 221,216,796.80, 305,256,027.60 and 122,095,716.48 is: 168,479,310.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,216,796.80 : 305,256,027.60 = 122,095,716.48 : x
  2. Step 2: Convert to fraction form
    221,216,796.80/305,256,027.60 = 122,095,716.48/x
  3. Step 3: Cross multiply
    221,216,796.80x = 305,256,027.60 × 122,095,716.48
  4. Step 4: Simplify right side
    221,216,796.80x = 37,270,453,399,660,656
  5. Step 5: Solve for x
    x = 37,270,453,399,660,656/221,216,796.80
  6. Step 6: Final answer
    x = 168,479,310.52

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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.