Home / 311,171,247.16-429,416,179.28-171,940,791.04

Finding the Fourth Proportional to 311,171,247.16, 429,416,179.28 and 171,940,791.04

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Solution

The fourth proportional to 311,171,247.16, 429,416,179.28 and 171,940,791.04 is: 237,278,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,171,247.16 : 429,416,179.28 = 171,940,791.04 : x
  2. Step 2: Convert to fraction form
    311,171,247.16/429,416,179.28 = 171,940,791.04/x
  3. Step 3: Cross multiply
    311,171,247.16x = 429,416,179.28 × 171,940,791.04
  4. Step 4: Simplify right side
    311,171,247.16x = 73,834,157,550,777,648
  5. Step 5: Solve for x
    x = 73,834,157,550,777,648/311,171,247.16
  6. Step 6: Final answer
    x = 237,278,213.28

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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.