Home / 279,936,369.80-419,904,554.70-178,151,640.20

Finding the Fourth Proportional to 279,936,369.80, 419,904,554.70 and 178,151,640.20

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Solution

The fourth proportional to 279,936,369.80, 419,904,554.70 and 178,151,640.20 is: 267,227,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,369.80 : 419,904,554.70 = 178,151,640.20 : x
  2. Step 2: Convert to fraction form
    279,936,369.80/419,904,554.70 = 178,151,640.20/x
  3. Step 3: Cross multiply
    279,936,369.80x = 419,904,554.70 × 178,151,640.20
  4. Step 4: Simplify right side
    279,936,369.80x = 74,806,685,147,255,616
  5. Step 5: Solve for x
    x = 74,806,685,147,255,616/279,936,369.80
  6. Step 6: Final answer
    x = 267,227,460.30

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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.