Home / 13,582,409.40-20,375,640.72-4,485,471.12

Finding the Fourth Proportional to 13,582,409.40, 20,375,640.72 and 4,485,471.12

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Solution

The fourth proportional to 13,582,409.40, 20,375,640.72 and 4,485,471.12 is: 6,728,875.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582,409.40 : 20,375,640.72 = 4,485,471.12 : x
  2. Step 2: Convert to fraction form
    13,582,409.40/20,375,640.72 = 4,485,471.12/x
  3. Step 3: Cross multiply
    13,582,409.40x = 20,375,640.72 × 4,485,471.12
  4. Step 4: Simplify right side
    13,582,409.40x = 91,394,348,001,056
  5. Step 5: Solve for x
    x = 91,394,348,001,056/13,582,409.40
  6. Step 6: Final answer
    x = 6,728,875.95

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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.