Home / 271,296,979.20-406,945,468.80-260,715,398.40

Finding the Fourth Proportional to 271,296,979.20, 406,945,468.80 and 260,715,398.40

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Solution

The fourth proportional to 271,296,979.20, 406,945,468.80 and 260,715,398.40 is: 391,073,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,296,979.20 : 406,945,468.80 = 260,715,398.40 : x
  2. Step 2: Convert to fraction form
    271,296,979.20/406,945,468.80 = 260,715,398.40/x
  3. Step 3: Cross multiply
    271,296,979.20x = 406,945,468.80 × 260,715,398.40
  4. Step 4: Simplify right side
    271,296,979.20x = 106,096,950,025,266,768
  5. Step 5: Solve for x
    x = 106,096,950,025,266,768/271,296,979.20
  6. Step 6: Final answer
    x = 391,073,097.60

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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.