Home / 19,200,471.81-28,800,735.43-7,840,920.43

Finding the Fourth Proportional to 19,200,471.81, 28,800,735.43 and 7,840,920.43

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Solution

The fourth proportional to 19,200,471.81, 28,800,735.43 and 7,840,920.43 is: 11,761,391.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200,471.81 : 28,800,735.43 = 7,840,920.43 : x
  2. Step 2: Convert to fraction form
    19,200,471.81/28,800,735.43 = 7,840,920.43/x
  3. Step 3: Cross multiply
    19,200,471.81x = 28,800,735.43 × 7,840,920.43
  4. Step 4: Simplify right side
    19,200,471.81x = 225,824,274,957,270.53
  5. Step 5: Solve for x
    x = 225,824,274,957,270.53/19,200,471.81
  6. Step 6: Final answer
    x = 11,761,391.97

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1.5x scale

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.