Home / 662,821,940.43-993,107,815.04-399,954,167.87

Finding the Fourth Proportional to 662,821,940.43, 993,107,815.04 and 399,954,167.87

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Solution

The fourth proportional to 662,821,940.43, 993,107,815.04 and 399,954,167.87 is: 599,252,356.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,821,940.43 : 993,107,815.04 = 399,954,167.87 : x
  2. Step 2: Convert to fraction form
    662,821,940.43/993,107,815.04 = 399,954,167.87/x
  3. Step 3: Cross multiply
    662,821,940.43x = 993,107,815.04 × 399,954,167.87
  4. Step 4: Simplify right side
    662,821,940.43x = 397,197,609,762,551,744
  5. Step 5: Solve for x
    x = 397,197,609,762,551,744/662,821,940.43
  6. Step 6: Final answer
    x = 599,252,356.53

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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.