Home / 399,418,255.24-551,197,939.03-223,206,250.79

Finding the Fourth Proportional to 399,418,255.24, 551,197,939.03 and 223,206,250.79

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Solution

The fourth proportional to 399,418,255.24, 551,197,939.03 and 223,206,250.79 is: 308,025,043.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,418,255.24 : 551,197,939.03 = 223,206,250.79 : x
  2. Step 2: Convert to fraction form
    399,418,255.24/551,197,939.03 = 223,206,250.79/x
  3. Step 3: Cross multiply
    399,418,255.24x = 551,197,939.03 × 223,206,250.79
  4. Step 4: Simplify right side
    399,418,255.24x = 123,030,825,414,881,296
  5. Step 5: Solve for x
    x = 123,030,825,414,881,296/399,418,255.24
  6. Step 6: Final answer
    x = 308,025,043.43

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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.