Home / 18,861,186.08-28,268,914.01-13,387,671.83

Finding the Fourth Proportional to 18,861,186.08, 28,268,914.01 and 13,387,671.83

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Solution

The fourth proportional to 18,861,186.08, 28,268,914.01 and 13,387,671.83 is: 20,065,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861,186.08 : 28,268,914.01 = 13,387,671.83 : x
  2. Step 2: Convert to fraction form
    18,861,186.08/28,268,914.01 = 13,387,671.83/x
  3. Step 3: Cross multiply
    18,861,186.08x = 28,268,914.01 × 13,387,671.83
  4. Step 4: Simplify right side
    18,861,186.08x = 378,454,943,760,103.25
  5. Step 5: Solve for x
    x = 378,454,943,760,103.25/18,861,186.08
  6. Step 6: Final answer
    x = 20,065,278.09

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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.