Home / 311,623,701.78-430,027,789.35-170,494,229.82

Finding the Fourth Proportional to 311,623,701.78, 430,027,789.35 and 170,494,229.82

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Solution

The fourth proportional to 311,623,701.78, 430,027,789.35 and 170,494,229.82 is: 235,274,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,623,701.78 : 430,027,789.35 = 170,494,229.82 : x
  2. Step 2: Convert to fraction form
    311,623,701.78/430,027,789.35 = 170,494,229.82/x
  3. Step 3: Cross multiply
    311,623,701.78x = 430,027,789.35 × 170,494,229.82
  4. Step 4: Simplify right side
    311,623,701.78x = 73,317,256,746,425,456
  5. Step 5: Solve for x
    x = 73,317,256,746,425,456/311,623,701.78
  6. Step 6: Final answer
    x = 235,274,968.91

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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.