Home / 512,489,175.54-769,960,142.68-328,616,899.04

Finding the Fourth Proportional to 512,489,175.54, 769,960,142.68 and 328,616,899.04

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Solution

The fourth proportional to 512,489,175.54, 769,960,142.68 and 328,616,899.04 is: 493,711,724.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,489,175.54 : 769,960,142.68 = 328,616,899.04 : x
  2. Step 2: Convert to fraction form
    512,489,175.54/769,960,142.68 = 328,616,899.04/x
  3. Step 3: Cross multiply
    512,489,175.54x = 769,960,142.68 × 328,616,899.04
  4. Step 4: Simplify right side
    512,489,175.54x = 253,021,914,471,897,568
  5. Step 5: Solve for x
    x = 253,021,914,471,897,568/512,489,175.54
  6. Step 6: Final answer
    x = 493,711,724.17

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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.