Home / 279,936,028.80-419,904,043.20-157,492,022.40

Finding the Fourth Proportional to 279,936,028.80, 419,904,043.20 and 157,492,022.40

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Solution

The fourth proportional to 279,936,028.80, 419,904,043.20 and 157,492,022.40 is: 236,238,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,028.80 : 419,904,043.20 = 157,492,022.40 : x
  2. Step 2: Convert to fraction form
    279,936,028.80/419,904,043.20 = 157,492,022.40/x
  3. Step 3: Cross multiply
    279,936,028.80x = 419,904,043.20 × 157,492,022.40
  4. Step 4: Simplify right side
    279,936,028.80x = 66,131,536,977,504,968
  5. Step 5: Solve for x
    x = 66,131,536,977,504,968/279,936,028.80
  6. Step 6: Final answer
    x = 236,238,033.60

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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.