Home / 419,189,279.94-578,485,159.56-231,024,358.89

Finding the Fourth Proportional to 419,189,279.94, 578,485,159.56 and 231,024,358.89

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Solution

The fourth proportional to 419,189,279.94, 578,485,159.56 and 231,024,358.89 is: 318,815,793.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,189,279.94 : 578,485,159.56 = 231,024,358.89 : x
  2. Step 2: Convert to fraction form
    419,189,279.94/578,485,159.56 = 231,024,358.89/x
  3. Step 3: Cross multiply
    419,189,279.94x = 578,485,159.56 × 231,024,358.89
  4. Step 4: Simplify right side
    419,189,279.94x = 133,644,163,114,728,336
  5. Step 5: Solve for x
    x = 133,644,163,114,728,336/419,189,279.94
  6. Step 6: Final answer
    x = 318,815,793.99

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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.