Home / 719,469,568.12-1,079,307,299.52-221,522,214.76

Finding the Fourth Proportional to 719,469,568.12, 1,079,307,299.52 and 221,522,214.76

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Solution

The fourth proportional to 719,469,568.12, 1,079,307,299.52 and 221,522,214.76 is: 332,315,019.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,469,568.12 : 1,079,307,299.52 = 221,522,214.76 : x
  2. Step 2: Convert to fraction form
    719,469,568.12/1,079,307,299.52 = 221,522,214.76/x
  3. Step 3: Cross multiply
    719,469,568.12x = 1,079,307,299.52 × 221,522,214.76
  4. Step 4: Simplify right side
    719,469,568.12x = 239,090,543,396,305,056
  5. Step 5: Solve for x
    x = 239,090,543,396,305,056/719,469,568.12
  6. Step 6: Final answer
    x = 332,315,019.27

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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.