Home / 419,904,378.80-629,856,568.20-402,898,266.80

Finding the Fourth Proportional to 419,904,378.80, 629,856,568.20 and 402,898,266.80

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Solution

The fourth proportional to 419,904,378.80, 629,856,568.20 and 402,898,266.80 is: 604,347,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,378.80 : 629,856,568.20 = 402,898,266.80 : x
  2. Step 2: Convert to fraction form
    419,904,378.80/629,856,568.20 = 402,898,266.80/x
  3. Step 3: Cross multiply
    419,904,378.80x = 629,856,568.20 × 402,898,266.80
  4. Step 4: Simplify right side
    419,904,378.80x = 253,768,119,660,376,032
  5. Step 5: Solve for x
    x = 253,768,119,660,376,032/419,904,378.80
  6. Step 6: Final answer
    x = 604,347,400.20

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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.