Home / 279,936,415.40-419,904,623.10-171,097,298.60

Finding the Fourth Proportional to 279,936,415.40, 419,904,623.10 and 171,097,298.60

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Solution

The fourth proportional to 279,936,415.40, 419,904,623.10 and 171,097,298.60 is: 256,645,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,415.40 : 419,904,623.10 = 171,097,298.60 : x
  2. Step 2: Convert to fraction form
    279,936,415.40/419,904,623.10 = 171,097,298.60/x
  3. Step 3: Cross multiply
    279,936,415.40x = 419,904,623.10 × 171,097,298.60
  4. Step 4: Simplify right side
    279,936,415.40x = 71,844,546,682,061,160
  5. Step 5: Solve for x
    x = 71,844,546,682,061,160/279,936,415.40
  6. Step 6: Final answer
    x = 256,645,947.90

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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.