Home / 19,200,474-28,800,738.71-7,840,922.62

Finding the Fourth Proportional to 19,200,474, 28,800,738.71 and 7,840,922.62

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Solution

The fourth proportional to 19,200,474, 28,800,738.71 and 7,840,922.62 is: 11,761,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200,474 : 28,800,738.71 = 7,840,922.62 : x
  2. Step 2: Convert to fraction form
    19,200,474/28,800,738.71 = 7,840,922.62/x
  3. Step 3: Cross multiply
    19,200,474x = 28,800,738.71 × 7,840,922.62
  4. Step 4: Simplify right side
    19,200,474x = 225,824,363,623,948.62
  5. Step 5: Solve for x
    x = 225,824,363,623,948.62/19,200,474
  6. Step 6: Final answer
    x = 11,761,395.25

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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.