Home / 19,179,171.94-28,780,107.84-7,057,147.72

Finding the Fourth Proportional to 19,179,171.94, 28,780,107.84 and 7,057,147.72

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Solution

The fourth proportional to 19,179,171.94, 28,780,107.84 and 7,057,147.72 is: 10,589,897.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179,171.94 : 28,780,107.84 = 7,057,147.72 : x
  2. Step 2: Convert to fraction form
    19,179,171.94/28,780,107.84 = 7,057,147.72/x
  3. Step 3: Cross multiply
    19,179,171.94x = 28,780,107.84 × 7,057,147.72
  4. Step 4: Simplify right side
    19,179,171.94x = 203,105,472,424,410.12
  5. Step 5: Solve for x
    x = 203,105,472,424,410.12/19,179,171.94
  6. Step 6: Final answer
    x = 10,589,897.89

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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.