Home / 20,858,409.44-28,784,513.76-11,691,052.64

Finding the Fourth Proportional to 20,858,409.44, 28,784,513.76 and 11,691,052.64

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Solution

The fourth proportional to 20,858,409.44, 28,784,513.76 and 11,691,052.64 is: 16,133,601.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858,409.44 : 28,784,513.76 = 11,691,052.64 : x
  2. Step 2: Convert to fraction form
    20,858,409.44/28,784,513.76 = 11,691,052.64/x
  3. Step 3: Cross multiply
    20,858,409.44x = 28,784,513.76 × 11,691,052.64
  4. Step 4: Simplify right side
    20,858,409.44x = 336,521,265,584,964.38
  5. Step 5: Solve for x
    x = 336,521,265,584,964.38/20,858,409.44
  6. Step 6: Final answer
    x = 16,133,601.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.