Home / 382,379,173.68-527,653,076.04-215,082,128.16

Finding the Fourth Proportional to 382,379,173.68, 527,653,076.04 and 215,082,128.16

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Solution

The fourth proportional to 382,379,173.68, 527,653,076.04 and 215,082,128.16 is: 296,796,359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,379,173.68 : 527,653,076.04 = 215,082,128.16 : x
  2. Step 2: Convert to fraction form
    382,379,173.68/527,653,076.04 = 215,082,128.16/x
  3. Step 3: Cross multiply
    382,379,173.68x = 527,653,076.04 × 215,082,128.16
  4. Step 4: Simplify right side
    382,379,173.68x = 113,488,746,524,853,504
  5. Step 5: Solve for x
    x = 113,488,746,524,853,504/382,379,173.68
  6. Step 6: Final answer
    x = 296,796,359.05

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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.