Home / 419,904,495.80-629,856,743.70-402,898,383.80

Finding the Fourth Proportional to 419,904,495.80, 629,856,743.70 and 402,898,383.80

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Solution

The fourth proportional to 419,904,495.80, 629,856,743.70 and 402,898,383.80 is: 604,347,575.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,495.80 : 629,856,743.70 = 402,898,383.80 : x
  2. Step 2: Convert to fraction form
    419,904,495.80/629,856,743.70 = 402,898,383.80/x
  3. Step 3: Cross multiply
    419,904,495.80x = 629,856,743.70 × 402,898,383.80
  4. Step 4: Simplify right side
    419,904,495.80x = 253,768,264,062,260,864
  5. Step 5: Solve for x
    x = 253,768,264,062,260,864/419,904,495.80
  6. Step 6: Final answer
    x = 604,347,575.70

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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.