Home / 2,186,122.30-3,279,183.45-1,286,640.70

Finding the Fourth Proportional to 2,186,122.30, 3,279,183.45 and 1,286,640.70

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Solution

The fourth proportional to 2,186,122.30, 3,279,183.45 and 1,286,640.70 is: 1,929,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,122.30 : 3,279,183.45 = 1,286,640.70 : x
  2. Step 2: Convert to fraction form
    2,186,122.30/3,279,183.45 = 1,286,640.70/x
  3. Step 3: Cross multiply
    2,186,122.30x = 3,279,183.45 × 1,286,640.70
  4. Step 4: Simplify right side
    2,186,122.30x = 4,219,130,889,536.42
  5. Step 5: Solve for x
    x = 4,219,130,889,536.42/2,186,122.30
  6. Step 6: Final answer
    x = 1,929,961.05

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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.