Home / 329,027,142.16-490,599,121.52-319,987,330.48

Finding the Fourth Proportional to 329,027,142.16, 490,599,121.52 and 319,987,330.48

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Solution

The fourth proportional to 329,027,142.16, 490,599,121.52 and 319,987,330.48 is: 477,120,222.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,027,142.16 : 490,599,121.52 = 319,987,330.48 : x
  2. Step 2: Convert to fraction form
    329,027,142.16/490,599,121.52 = 319,987,330.48/x
  3. Step 3: Cross multiply
    329,027,142.16x = 490,599,121.52 × 319,987,330.48
  4. Step 4: Simplify right side
    329,027,142.16x = 156,985,503,231,017,920
  5. Step 5: Solve for x
    x = 156,985,503,231,017,920/329,027,142.16
  6. Step 6: Final answer
    x = 477,120,222.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.