Home / 311,571,238.78-429,941,524.89-172,307,336.14

Finding the Fourth Proportional to 311,571,238.78, 429,941,524.89 and 172,307,336.14

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Solution

The fourth proportional to 311,571,238.78, 429,941,524.89 and 172,307,336.14 is: 237,769,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,571,238.78 : 429,941,524.89 = 172,307,336.14 : x
  2. Step 2: Convert to fraction form
    311,571,238.78/429,941,524.89 = 172,307,336.14/x
  3. Step 3: Cross multiply
    311,571,238.78x = 429,941,524.89 × 172,307,336.14
  4. Step 4: Simplify right side
    311,571,238.78x = 74,082,078,849,765,392
  5. Step 5: Solve for x
    x = 74,082,078,849,765,392/311,571,238.78
  6. Step 6: Final answer
    x = 237,769,311.25

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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.