Home / 213,020,120.20-319,530,180.30-83,561,092.60

Finding the Fourth Proportional to 213,020,120.20, 319,530,180.30 and 83,561,092.60

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Solution

The fourth proportional to 213,020,120.20, 319,530,180.30 and 83,561,092.60 is: 125,341,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,020,120.20 : 319,530,180.30 = 83,561,092.60 : x
  2. Step 2: Convert to fraction form
    213,020,120.20/319,530,180.30 = 83,561,092.60/x
  3. Step 3: Cross multiply
    213,020,120.20x = 319,530,180.30 × 83,561,092.60
  4. Step 4: Simplify right side
    213,020,120.20x = 26,700,290,984,542,996
  5. Step 5: Solve for x
    x = 26,700,290,984,542,996/213,020,120.20
  6. Step 6: Final answer
    x = 125,341,638.90

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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.