Home / 91,192,016.49-125,750,921.34-78,004,847.04

Finding the Fourth Proportional to 91,192,016.49, 125,750,921.34 and 78,004,847.04

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Solution

The fourth proportional to 91,192,016.49, 125,750,921.34 and 78,004,847.04 is: 107,566,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,192,016.49 : 125,750,921.34 = 78,004,847.04 : x
  2. Step 2: Convert to fraction form
    91,192,016.49/125,750,921.34 = 78,004,847.04/x
  3. Step 3: Cross multiply
    91,192,016.49x = 125,750,921.34 × 78,004,847.04
  4. Step 4: Simplify right side
    91,192,016.49x = 9,809,181,384,265,772
  5. Step 5: Solve for x
    x = 9,809,181,384,265,772/91,192,016.49
  6. Step 6: Final answer
    x = 107,566,229.61

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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.