Home / 419,904,539.60-629,856,809.40-266,660,574.80

Finding the Fourth Proportional to 419,904,539.60, 629,856,809.40 and 266,660,574.80

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Solution

The fourth proportional to 419,904,539.60, 629,856,809.40 and 266,660,574.80 is: 399,990,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,539.60 : 629,856,809.40 = 266,660,574.80 : x
  2. Step 2: Convert to fraction form
    419,904,539.60/629,856,809.40 = 266,660,574.80/x
  3. Step 3: Cross multiply
    419,904,539.60x = 629,856,809.40 × 266,660,574.80
  4. Step 4: Simplify right side
    419,904,539.60x = 167,957,978,836,298,048
  5. Step 5: Solve for x
    x = 167,957,978,836,298,048/419,904,539.60
  6. Step 6: Final answer
    x = 399,990,862.20

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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.