Home / 419,905,097.60-629,857,646.40-266,661,132.80

Finding the Fourth Proportional to 419,905,097.60, 629,857,646.40 and 266,661,132.80

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Solution

The fourth proportional to 419,905,097.60, 629,857,646.40 and 266,661,132.80 is: 399,991,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,097.60 : 629,857,646.40 = 266,661,132.80 : x
  2. Step 2: Convert to fraction form
    419,905,097.60/629,857,646.40 = 266,661,132.80/x
  3. Step 3: Cross multiply
    419,905,097.60x = 629,857,646.40 × 266,661,132.80
  4. Step 4: Simplify right side
    419,905,097.60x = 167,958,553,491,765,856
  5. Step 5: Solve for x
    x = 167,958,553,491,765,856/419,905,097.60
  6. Step 6: Final answer
    x = 399,991,699.20

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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.