Home / 419,189,278.44-578,485,157.49-231,024,357.39

Finding the Fourth Proportional to 419,189,278.44, 578,485,157.49 and 231,024,357.39

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Solution

The fourth proportional to 419,189,278.44, 578,485,157.49 and 231,024,357.39 is: 318,815,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,189,278.44 : 578,485,157.49 = 231,024,357.39 : x
  2. Step 2: Convert to fraction form
    419,189,278.44/578,485,157.49 = 231,024,357.39/x
  3. Step 3: Cross multiply
    419,189,278.44x = 578,485,157.49 × 231,024,357.39
  4. Step 4: Simplify right side
    419,189,278.44x = 133,644,161,768,780,192
  5. Step 5: Solve for x
    x = 133,644,161,768,780,192/419,189,278.44
  6. Step 6: Final answer
    x = 318,815,791.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.