Home / 419,905,086.40-629,857,629.60-266,724,107.20

Finding the Fourth Proportional to 419,905,086.40, 629,857,629.60 and 266,724,107.20

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Solution

The fourth proportional to 419,905,086.40, 629,857,629.60 and 266,724,107.20 is: 400,086,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,086.40 : 629,857,629.60 = 266,724,107.20 : x
  2. Step 2: Convert to fraction form
    419,905,086.40/629,857,629.60 = 266,724,107.20/x
  3. Step 3: Cross multiply
    419,905,086.40x = 629,857,629.60 × 266,724,107.20
  4. Step 4: Simplify right side
    419,905,086.40x = 167,998,213,918,168,288
  5. Step 5: Solve for x
    x = 167,998,213,918,168,288/419,905,086.40
  6. Step 6: Final answer
    x = 400,086,160.80

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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.