Home / 419,905,116.20-629,857,674.30-267,228,021.80

Finding the Fourth Proportional to 419,905,116.20, 629,857,674.30 and 267,228,021.80

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Solution

The fourth proportional to 419,905,116.20, 629,857,674.30 and 267,228,021.80 is: 400,842,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,116.20 : 629,857,674.30 = 267,228,021.80 : x
  2. Step 2: Convert to fraction form
    419,905,116.20/629,857,674.30 = 267,228,021.80/x
  3. Step 3: Cross multiply
    419,905,116.20x = 629,857,674.30 × 267,228,021.80
  4. Step 4: Simplify right side
    419,905,116.20x = 168,315,620,318,737,696
  5. Step 5: Solve for x
    x = 168,315,620,318,737,696/419,905,116.20
  6. Step 6: Final answer
    x = 400,842,032.70

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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.