Home / 6,102,128.76-8,420,380.92-3,620,921.82

Finding the Fourth Proportional to 6,102,128.76, 8,420,380.92 and 3,620,921.82

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Solution

The fourth proportional to 6,102,128.76, 8,420,380.92 and 3,620,921.82 is: 4,996,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,102,128.76 : 8,420,380.92 = 3,620,921.82 : x
  2. Step 2: Convert to fraction form
    6,102,128.76/8,420,380.92 = 3,620,921.82/x
  3. Step 3: Cross multiply
    6,102,128.76x = 8,420,380.92 × 3,620,921.82
  4. Step 4: Simplify right side
    6,102,128.76x = 30,489,541,005,939.67
  5. Step 5: Solve for x
    x = 30,489,541,005,939.67/6,102,128.76
  6. Step 6: Final answer
    x = 4,996,541.73

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1.5x scale

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.