Home / 419,472,421.20-629,208,631.80-266,795,326.80

Finding the Fourth Proportional to 419,472,421.20, 629,208,631.80 and 266,795,326.80

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Solution

The fourth proportional to 419,472,421.20, 629,208,631.80 and 266,795,326.80 is: 400,192,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,472,421.20 : 629,208,631.80 = 266,795,326.80 : x
  2. Step 2: Convert to fraction form
    419,472,421.20/629,208,631.80 = 266,795,326.80/x
  3. Step 3: Cross multiply
    419,472,421.20x = 629,208,631.80 × 266,795,326.80
  4. Step 4: Simplify right side
    419,472,421.20x = 167,869,922,546,461,856
  5. Step 5: Solve for x
    x = 167,869,922,546,461,856/419,472,421.20
  6. Step 6: Final answer
    x = 400,192,990.20

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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.