Home / 319,627,205.20-479,440,807.80-147,440,321.20

Finding the Fourth Proportional to 319,627,205.20, 479,440,807.80 and 147,440,321.20

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Solution

The fourth proportional to 319,627,205.20, 479,440,807.80 and 147,440,321.20 is: 221,160,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,627,205.20 : 479,440,807.80 = 147,440,321.20 : x
  2. Step 2: Convert to fraction form
    319,627,205.20/479,440,807.80 = 147,440,321.20/x
  3. Step 3: Cross multiply
    319,627,205.20x = 479,440,807.80 × 147,440,321.20
  4. Step 4: Simplify right side
    319,627,205.20x = 70,688,906,698,419,464
  5. Step 5: Solve for x
    x = 70,688,906,698,419,464/319,627,205.20
  6. Step 6: Final answer
    x = 221,160,481.80

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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.