Home / 664,026,441.58-995,971,223.04-221,321,287.18

Finding the Fourth Proportional to 664,026,441.58, 995,971,223.04 and 221,321,287.18

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Solution

The fourth proportional to 664,026,441.58, 995,971,223.04 and 221,321,287.18 is: 331,959,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,026,441.58 : 995,971,223.04 = 221,321,287.18 : x
  2. Step 2: Convert to fraction form
    664,026,441.58/995,971,223.04 = 221,321,287.18/x
  3. Step 3: Cross multiply
    664,026,441.58x = 995,971,223.04 × 221,321,287.18
  4. Step 4: Simplify right side
    664,026,441.58x = 220,429,633,077,451,680
  5. Step 5: Solve for x
    x = 220,429,633,077,451,680/664,026,441.58
  6. Step 6: Final answer
    x = 331,959,119.81

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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.