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Finding the Fourth Proportional to 336,993,857.80, 505,490,786.70 and 282,574,299.40

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Solution

The fourth proportional to 336,993,857.80, 505,490,786.70 and 282,574,299.40 is: 423,861,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,993,857.80 : 505,490,786.70 = 282,574,299.40 : x
  2. Step 2: Convert to fraction form
    336,993,857.80/505,490,786.70 = 282,574,299.40/x
  3. Step 3: Cross multiply
    336,993,857.80x = 505,490,786.70 × 282,574,299.40
  4. Step 4: Simplify right side
    336,993,857.80x = 142,838,704,904,907,328
  5. Step 5: Solve for x
    x = 142,838,704,904,907,328/336,993,857.80
  6. Step 6: Final answer
    x = 423,861,449.10

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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.