Home / 318,965,933.53-440,173,164.85-172,288,217.53

Finding the Fourth Proportional to 318,965,933.53, 440,173,164.85 and 172,288,217.53

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Solution

The fourth proportional to 318,965,933.53, 440,173,164.85 and 172,288,217.53 is: 237,757,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,965,933.53 : 440,173,164.85 = 172,288,217.53 : x
  2. Step 2: Convert to fraction form
    318,965,933.53/440,173,164.85 = 172,288,217.53/x
  3. Step 3: Cross multiply
    318,965,933.53x = 440,173,164.85 × 172,288,217.53
  4. Step 4: Simplify right side
    318,965,933.53x = 75,836,649,977,633,104
  5. Step 5: Solve for x
    x = 75,836,649,977,633,104/318,965,933.53
  6. Step 6: Final answer
    x = 237,757,835.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.