Home / 399,434,247.85-551,171,523.36-220,794,004.81

Finding the Fourth Proportional to 399,434,247.85, 551,171,523.36 and 220,794,004.81

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Solution

The fourth proportional to 399,434,247.85, 551,171,523.36 and 220,794,004.81 is: 304,669,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,434,247.85 : 551,171,523.36 = 220,794,004.81 : x
  2. Step 2: Convert to fraction form
    399,434,247.85/551,171,523.36 = 220,794,004.81/x
  3. Step 3: Cross multiply
    399,434,247.85x = 551,171,523.36 × 220,794,004.81
  4. Step 4: Simplify right side
    399,434,247.85x = 121,695,367,979,882,864
  5. Step 5: Solve for x
    x = 121,695,367,979,882,864/399,434,247.85
  6. Step 6: Final answer
    x = 304,669,338.28

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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.