Home / 392,202,419.80-587,028,171.30-305,471,248.60

Finding the Fourth Proportional to 392,202,419.80, 587,028,171.30 and 305,471,248.60

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Solution

The fourth proportional to 392,202,419.80, 587,028,171.30 and 305,471,248.60 is: 457,213,467.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,202,419.80 : 587,028,171.30 = 305,471,248.60 : x
  2. Step 2: Convert to fraction form
    392,202,419.80/587,028,171.30 = 305,471,248.60/x
  3. Step 3: Cross multiply
    392,202,419.80x = 587,028,171.30 × 305,471,248.60
  4. Step 4: Simplify right side
    392,202,419.80x = 179,320,228,450,385,696
  5. Step 5: Solve for x
    x = 179,320,228,450,385,696/392,202,419.80
  6. Step 6: Final answer
    x = 457,213,467.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.