Home / 279,936,205.20-419,904,307.80-253,151,578.80

Finding the Fourth Proportional to 279,936,205.20, 419,904,307.80 and 253,151,578.80

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Solution

The fourth proportional to 279,936,205.20, 419,904,307.80 and 253,151,578.80 is: 379,727,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,205.20 : 419,904,307.80 = 253,151,578.80 : x
  2. Step 2: Convert to fraction form
    279,936,205.20/419,904,307.80 = 253,151,578.80/x
  3. Step 3: Cross multiply
    279,936,205.20x = 419,904,307.80 × 253,151,578.80
  4. Step 4: Simplify right side
    279,936,205.20x = 106,299,438,464,491,168
  5. Step 5: Solve for x
    x = 106,299,438,464,491,168/279,936,205.20
  6. Step 6: Final answer
    x = 379,727,368.20

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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.