Home / 3,101,765.60-4,279,803.78-1,812,356.57

Finding the Fourth Proportional to 3,101,765.60, 4,279,803.78 and 1,812,356.57

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Solution

The fourth proportional to 3,101,765.60, 4,279,803.78 and 1,812,356.57 is: 2,500,682.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101,765.60 : 4,279,803.78 = 1,812,356.57 : x
  2. Step 2: Convert to fraction form
    3,101,765.60/4,279,803.78 = 1,812,356.57/x
  3. Step 3: Cross multiply
    3,101,765.60x = 4,279,803.78 × 1,812,356.57
  4. Step 4: Simplify right side
    3,101,765.60x = 7,756,530,516,489.68
  5. Step 5: Solve for x
    x = 7,756,530,516,489.68/3,101,765.60
  6. Step 6: Final answer
    x = 2,500,682.36

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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.