Home / 419,904,550.80-629,856,826.20-402,898,438.80

Finding the Fourth Proportional to 419,904,550.80, 629,856,826.20 and 402,898,438.80

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Solution

The fourth proportional to 419,904,550.80, 629,856,826.20 and 402,898,438.80 is: 604,347,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,550.80 : 629,856,826.20 = 402,898,438.80 : x
  2. Step 2: Convert to fraction form
    419,904,550.80/629,856,826.20 = 402,898,438.80/x
  3. Step 3: Cross multiply
    419,904,550.80x = 629,856,826.20 × 402,898,438.80
  4. Step 4: Simplify right side
    419,904,550.80x = 253,768,331,943,502,976
  5. Step 5: Solve for x
    x = 253,768,331,943,502,976/419,904,550.80
  6. Step 6: Final answer
    x = 604,347,658.20

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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.