Home / 19,200,474.95-28,800,740.14-7,840,923.57

Finding the Fourth Proportional to 19,200,474.95, 28,800,740.14 and 7,840,923.57

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Solution

The fourth proportional to 19,200,474.95, 28,800,740.14 and 7,840,923.57 is: 11,761,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200,474.95 : 28,800,740.14 = 7,840,923.57 : x
  2. Step 2: Convert to fraction form
    19,200,474.95/28,800,740.14 = 7,840,923.57/x
  3. Step 3: Cross multiply
    19,200,474.95x = 28,800,740.14 × 7,840,923.57
  4. Step 4: Simplify right side
    19,200,474.95x = 225,824,402,177,568.78
  5. Step 5: Solve for x
    x = 225,824,402,177,568.78/19,200,474.95
  6. Step 6: Final answer
    x = 11,761,396.68

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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.