Home / 18,942,853.80-28,372,290.30-11,384,581.80

Finding the Fourth Proportional to 18,942,853.80, 28,372,290.30 and 11,384,581.80

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Solution

The fourth proportional to 18,942,853.80, 28,372,290.30 and 11,384,581.80 is: 17,051,636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942,853.80 : 28,372,290.30 = 11,384,581.80 : x
  2. Step 2: Convert to fraction form
    18,942,853.80/28,372,290.30 = 11,384,581.80/x
  3. Step 3: Cross multiply
    18,942,853.80x = 28,372,290.30 × 11,384,581.80
  4. Step 4: Simplify right side
    18,942,853.80x = 323,006,659,773,696.56
  5. Step 5: Solve for x
    x = 323,006,659,773,696.56/18,942,853.80
  6. Step 6: Final answer
    x = 17,051,636.63

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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.