Home / 705,028,531.20-1,057,542,796.80-220,353,561.60

Finding the Fourth Proportional to 705,028,531.20, 1,057,542,796.80 and 220,353,561.60

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Solution

The fourth proportional to 705,028,531.20, 1,057,542,796.80 and 220,353,561.60 is: 330,530,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,028,531.20 : 1,057,542,796.80 = 220,353,561.60 : x
  2. Step 2: Convert to fraction form
    705,028,531.20/1,057,542,796.80 = 220,353,561.60/x
  3. Step 3: Cross multiply
    705,028,531.20x = 1,057,542,796.80 × 220,353,561.60
  4. Step 4: Simplify right side
    705,028,531.20x = 233,033,321,819,305,056
  5. Step 5: Solve for x
    x = 233,033,321,819,305,056/705,028,531.20
  6. Step 6: Final answer
    x = 330,530,342.40

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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.