Home / 419,904,714.80-629,857,072.20-147,240,052.40

Finding the Fourth Proportional to 419,904,714.80, 629,857,072.20 and 147,240,052.40

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Solution

The fourth proportional to 419,904,714.80, 629,857,072.20 and 147,240,052.40 is: 220,860,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,714.80 : 629,857,072.20 = 147,240,052.40 : x
  2. Step 2: Convert to fraction form
    419,904,714.80/629,857,072.20 = 147,240,052.40/x
  3. Step 3: Cross multiply
    419,904,714.80x = 629,857,072.20 × 147,240,052.40
  4. Step 4: Simplify right side
    419,904,714.80x = 92,740,188,315,238,592
  5. Step 5: Solve for x
    x = 92,740,188,315,238,592/419,904,714.80
  6. Step 6: Final answer
    x = 220,860,078.60

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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.