Home / 18,667,078.80-28,000,618.20-16,753,891.20

Finding the Fourth Proportional to 18,667,078.80, 28,000,618.20 and 16,753,891.20

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Solution

The fourth proportional to 18,667,078.80, 28,000,618.20 and 16,753,891.20 is: 25,130,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667,078.80 : 28,000,618.20 = 16,753,891.20 : x
  2. Step 2: Convert to fraction form
    18,667,078.80/28,000,618.20 = 16,753,891.20/x
  3. Step 3: Cross multiply
    18,667,078.80x = 28,000,618.20 × 16,753,891.20
  4. Step 4: Simplify right side
    18,667,078.80x = 469,119,310,855,539.81
  5. Step 5: Solve for x
    x = 469,119,310,855,539.81/18,667,078.80
  6. Step 6: Final answer
    x = 25,130,836.80

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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.