Home / 19,200,477-28,800,743.21-7,840,925.62

Finding the Fourth Proportional to 19,200,477, 28,800,743.21 and 7,840,925.62

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Solution

The fourth proportional to 19,200,477, 28,800,743.21 and 7,840,925.62 is: 11,761,399.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200,477 : 28,800,743.21 = 7,840,925.62 : x
  2. Step 2: Convert to fraction form
    19,200,477/28,800,743.21 = 7,840,925.62/x
  3. Step 3: Cross multiply
    19,200,477x = 28,800,743.21 × 7,840,925.62
  4. Step 4: Simplify right side
    19,200,477x = 225,824,485,310,330.06
  5. Step 5: Solve for x
    x = 225,824,485,310,330.06/19,200,477
  6. Step 6: Final answer
    x = 11,761,399.75

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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.