Home / 512,489,191-769,960,165.92-328,616,914.56

Finding the Fourth Proportional to 512,489,191, 769,960,165.92 and 328,616,914.56

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Solution

The fourth proportional to 512,489,191, 769,960,165.92 and 328,616,914.56 is: 493,711,747.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,489,191 : 769,960,165.92 = 328,616,914.56 : x
  2. Step 2: Convert to fraction form
    512,489,191/769,960,165.92 = 328,616,914.56/x
  3. Step 3: Cross multiply
    512,489,191x = 769,960,165.92 × 328,616,914.56
  4. Step 4: Simplify right side
    512,489,191x = 253,021,934,058,736,064
  5. Step 5: Solve for x
    x = 253,021,934,058,736,064/512,489,191
  6. Step 6: Final answer
    x = 493,711,747.49

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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.