Home / 512,635,328.76-707,440,150.41-277,685,989.23

Finding the Fourth Proportional to 512,635,328.76, 707,440,150.41 and 277,685,989.23

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Solution

The fourth proportional to 512,635,328.76, 707,440,150.41 and 277,685,989.23 is: 383,208,505.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,635,328.76 : 707,440,150.41 = 277,685,989.23 : x
  2. Step 2: Convert to fraction form
    512,635,328.76/707,440,150.41 = 277,685,989.23/x
  3. Step 3: Cross multiply
    512,635,328.76x = 707,440,150.41 × 277,685,989.23
  4. Step 4: Simplify right side
    512,635,328.76x = 196,446,217,987,620,832
  5. Step 5: Solve for x
    x = 196,446,217,987,620,832/512,635,328.76
  6. Step 6: Final answer
    x = 383,208,505.08

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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.