Home / 12,982,439.40-19,457,912.70-5,786,334.60

Finding the Fourth Proportional to 12,982,439.40, 19,457,912.70 and 5,786,334.60

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Solution

The fourth proportional to 12,982,439.40, 19,457,912.70 and 5,786,334.60 is: 8,672,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,439.40 : 19,457,912.70 = 5,786,334.60 : x
  2. Step 2: Convert to fraction form
    12,982,439.40/19,457,912.70 = 5,786,334.60/x
  3. Step 3: Cross multiply
    12,982,439.40x = 19,457,912.70 × 5,786,334.60
  4. Step 4: Simplify right side
    12,982,439.40x = 112,589,993,499,789.41
  5. Step 5: Solve for x
    x = 112,589,993,499,789.41/12,982,439.40
  6. Step 6: Final answer
    x = 8,672,483.66

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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.