Home / 355,728,640.94-490,920,865.38-196,958,766.92

Finding the Fourth Proportional to 355,728,640.94, 490,920,865.38 and 196,958,766.92

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Solution

The fourth proportional to 355,728,640.94, 490,920,865.38 and 196,958,766.92 is: 271,811,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,728,640.94 : 490,920,865.38 = 196,958,766.92 : x
  2. Step 2: Convert to fraction form
    355,728,640.94/490,920,865.38 = 196,958,766.92/x
  3. Step 3: Cross multiply
    355,728,640.94x = 490,920,865.38 × 196,958,766.92
  4. Step 4: Simplify right side
    355,728,640.94x = 96,691,168,300,051,712
  5. Step 5: Solve for x
    x = 96,691,168,300,051,712/355,728,640.94
  6. Step 6: Final answer
    x = 271,811,592.24

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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.