Home / 18,757,243.80-28,135,865.70-9,191,305.80

Finding the Fourth Proportional to 18,757,243.80, 28,135,865.70 and 9,191,305.80

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Solution

The fourth proportional to 18,757,243.80, 28,135,865.70 and 9,191,305.80 is: 13,786,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757,243.80 : 28,135,865.70 = 9,191,305.80 : x
  2. Step 2: Convert to fraction form
    18,757,243.80/28,135,865.70 = 9,191,305.80/x
  3. Step 3: Cross multiply
    18,757,243.80x = 28,135,865.70 × 9,191,305.80
  4. Step 4: Simplify right side
    18,757,243.80x = 258,605,345,596,431.06
  5. Step 5: Solve for x
    x = 258,605,345,596,431.06/18,757,243.80
  6. Step 6: Final answer
    x = 13,786,958.70

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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.