Home / 18,279,824.92-25,183,761.76-12,764,463.79

Finding the Fourth Proportional to 18,279,824.92, 25,183,761.76 and 12,764,463.79

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Solution

The fourth proportional to 18,279,824.92, 25,183,761.76 and 12,764,463.79 is: 17,585,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279,824.92 : 25,183,761.76 = 12,764,463.79 : x
  2. Step 2: Convert to fraction form
    18,279,824.92/25,183,761.76 = 12,764,463.79/x
  3. Step 3: Cross multiply
    18,279,824.92x = 25,183,761.76 × 12,764,463.79
  4. Step 4: Simplify right side
    18,279,824.92x = 321,457,215,081,506.69
  5. Step 5: Solve for x
    x = 321,457,215,081,506.69/18,279,824.92
  6. Step 6: Final answer
    x = 17,585,355.25

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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.