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Finding the Fourth Proportional to 329,691,806.80, 494,537,710.20 and 99,630,997.90

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Solution

The fourth proportional to 329,691,806.80, 494,537,710.20 and 99,630,997.90 is: 149,446,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,691,806.80 : 494,537,710.20 = 99,630,997.90 : x
  2. Step 2: Convert to fraction form
    329,691,806.80/494,537,710.20 = 99,630,997.90/x
  3. Step 3: Cross multiply
    329,691,806.80x = 494,537,710.20 × 99,630,997.90
  4. Step 4: Simplify right side
    329,691,806.80x = 49,271,285,566,407,008
  5. Step 5: Solve for x
    x = 49,271,285,566,407,008/329,691,806.80
  6. Step 6: Final answer
    x = 149,446,496.85

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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.