Home / 512,489,178.04-769,960,146.43-328,616,901.54

Finding the Fourth Proportional to 512,489,178.04, 769,960,146.43 and 328,616,901.54

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Solution

The fourth proportional to 512,489,178.04, 769,960,146.43 and 328,616,901.54 is: 493,711,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,489,178.04 : 769,960,146.43 = 328,616,901.54 : x
  2. Step 2: Convert to fraction form
    512,489,178.04/769,960,146.43 = 328,616,901.54/x
  3. Step 3: Cross multiply
    512,489,178.04x = 769,960,146.43 × 328,616,901.54
  4. Step 4: Simplify right side
    512,489,178.04x = 253,021,917,629,111,296
  5. Step 5: Solve for x
    x = 253,021,917,629,111,296/512,489,178.04
  6. Step 6: Final answer
    x = 493,711,727.92

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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.