Home / 7,981,409.70-11,972,114.55-4,790,139.30

Finding the Fourth Proportional to 7,981,409.70, 11,972,114.55 and 4,790,139.30

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Solution

The fourth proportional to 7,981,409.70, 11,972,114.55 and 4,790,139.30 is: 7,185,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,409.70 : 11,972,114.55 = 4,790,139.30 : x
  2. Step 2: Convert to fraction form
    7,981,409.70/11,972,114.55 = 4,790,139.30/x
  3. Step 3: Cross multiply
    7,981,409.70x = 11,972,114.55 × 4,790,139.30
  4. Step 4: Simplify right side
    7,981,409.70x = 57,348,096,410,056.81
  5. Step 5: Solve for x
    x = 57,348,096,410,056.81/7,981,409.70
  6. Step 6: Final answer
    x = 7,185,208.95

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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.