Home / 419,904,512.60-629,856,768.90-265,715,763.80

Finding the Fourth Proportional to 419,904,512.60, 629,856,768.90 and 265,715,763.80

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Solution

The fourth proportional to 419,904,512.60, 629,856,768.90 and 265,715,763.80 is: 398,573,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,512.60 : 629,856,768.90 = 265,715,763.80 : x
  2. Step 2: Convert to fraction form
    419,904,512.60/629,856,768.90 = 265,715,763.80/x
  3. Step 3: Cross multiply
    419,904,512.60x = 629,856,768.90 × 265,715,763.80
  4. Step 4: Simplify right side
    419,904,512.60x = 167,362,872,432,863,584
  5. Step 5: Solve for x
    x = 167,362,872,432,863,584/419,904,512.60
  6. Step 6: Final answer
    x = 398,573,645.70

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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.