Home / 378,883,866.25-568,325,821.38-91,669,530.25

Finding the Fourth Proportional to 378,883,866.25, 568,325,821.38 and 91,669,530.25

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Solution

The fourth proportional to 378,883,866.25, 568,325,821.38 and 91,669,530.25 is: 137,504,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,883,866.25 : 568,325,821.38 = 91,669,530.25 : x
  2. Step 2: Convert to fraction form
    378,883,866.25/568,325,821.38 = 91,669,530.25/x
  3. Step 3: Cross multiply
    378,883,866.25x = 568,325,821.38 × 91,669,530.25
  4. Step 4: Simplify right side
    378,883,866.25x = 52,098,161,074,850,008
  5. Step 5: Solve for x
    x = 52,098,161,074,850,008/378,883,866.25
  6. Step 6: Final answer
    x = 137,504,300.70

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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.