Home / 279,952,388.20-419,718,630.30-143,735,530.60

Finding the Fourth Proportional to 279,952,388.20, 419,718,630.30 and 143,735,530.60

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Solution

The fourth proportional to 279,952,388.20, 419,718,630.30 and 143,735,530.60 is: 215,495,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,952,388.20 : 419,718,630.30 = 143,735,530.60 : x
  2. Step 2: Convert to fraction form
    279,952,388.20/419,718,630.30 = 143,735,530.60/x
  3. Step 3: Cross multiply
    279,952,388.20x = 419,718,630.30 × 143,735,530.60
  4. Step 4: Simplify right side
    279,952,388.20x = 60,328,480,028,875,736
  5. Step 5: Solve for x
    x = 60,328,480,028,875,736/279,952,388.20
  6. Step 6: Final answer
    x = 215,495,500.56

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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.