Home / 419,904,420.60-629,856,630.90-413,101,975.80

Finding the Fourth Proportional to 419,904,420.60, 629,856,630.90 and 413,101,975.80

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Solution

The fourth proportional to 419,904,420.60, 629,856,630.90 and 413,101,975.80 is: 619,652,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,420.60 : 629,856,630.90 = 413,101,975.80 : x
  2. Step 2: Convert to fraction form
    419,904,420.60/629,856,630.90 = 413,101,975.80/x
  3. Step 3: Cross multiply
    419,904,420.60x = 629,856,630.90 × 413,101,975.80
  4. Step 4: Simplify right side
    419,904,420.60x = 260,195,018,695,521,344
  5. Step 5: Solve for x
    x = 260,195,018,695,521,344/419,904,420.60
  6. Step 6: Final answer
    x = 619,652,963.70

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1.5x scale

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.