Home / 445,175,999.20-667,763,998.80-395,858,274.40

Finding the Fourth Proportional to 445,175,999.20, 667,763,998.80 and 395,858,274.40

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Solution

The fourth proportional to 445,175,999.20, 667,763,998.80 and 395,858,274.40 is: 593,787,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,175,999.20 : 667,763,998.80 = 395,858,274.40 : x
  2. Step 2: Convert to fraction form
    445,175,999.20/667,763,998.80 = 395,858,274.40/x
  3. Step 3: Cross multiply
    445,175,999.20x = 667,763,998.80 × 395,858,274.40
  4. Step 4: Simplify right side
    445,175,999.20x = 264,339,904,271,411,648
  5. Step 5: Solve for x
    x = 264,339,904,271,411,648/445,175,999.20
  6. Step 6: Final answer
    x = 593,787,411.60

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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.