Home / 398,540,493.32-550,095,272.25-231,330,624.30

Finding the Fourth Proportional to 398,540,493.32, 550,095,272.25 and 231,330,624.30

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Solution

The fourth proportional to 398,540,493.32, 550,095,272.25 and 231,330,624.30 is: 319,299,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,540,493.32 : 550,095,272.25 = 231,330,624.30 : x
  2. Step 2: Convert to fraction form
    398,540,493.32/550,095,272.25 = 231,330,624.30/x
  3. Step 3: Cross multiply
    398,540,493.32x = 550,095,272.25 × 231,330,624.30
  4. Step 4: Simplify right side
    398,540,493.32x = 127,253,882,750,163,824
  5. Step 5: Solve for x
    x = 127,253,882,750,163,824/398,540,493.32
  6. Step 6: Final answer
    x = 319,299,757.20

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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.