Home / 256,808,367-384,985,799.91-196,493,356.44

Finding the Fourth Proportional to 256,808,367, 384,985,799.91 and 196,493,356.44

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Solution

The fourth proportional to 256,808,367, 384,985,799.91 and 196,493,356.44 is: 294,566,539.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,808,367 : 384,985,799.91 = 196,493,356.44 : x
  2. Step 2: Convert to fraction form
    256,808,367/384,985,799.91 = 196,493,356.44/x
  3. Step 3: Cross multiply
    256,808,367x = 384,985,799.91 × 196,493,356.44
  4. Step 4: Simplify right side
    256,808,367x = 75,647,152,006,054,160
  5. Step 5: Solve for x
    x = 75,647,152,006,054,160/256,808,367
  6. Step 6: Final answer
    x = 294,566,539.59

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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.