Home / 398,949,668.20-550,508,582.82-231,653,227.24

Finding the Fourth Proportional to 398,949,668.20, 550,508,582.82 and 231,653,227.24

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Solution

The fourth proportional to 398,949,668.20, 550,508,582.82 and 231,653,227.24 is: 319,657,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,949,668.20 : 550,508,582.82 = 231,653,227.24 : x
  2. Step 2: Convert to fraction form
    398,949,668.20/550,508,582.82 = 231,653,227.24/x
  3. Step 3: Cross multiply
    398,949,668.20x = 550,508,582.82 × 231,653,227.24
  4. Step 4: Simplify right side
    398,949,668.20x = 127,527,089,833,571,840
  5. Step 5: Solve for x
    x = 127,527,089,833,571,840/398,949,668.20
  6. Step 6: Final answer
    x = 319,657,089.60

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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.