Home / 20,418,884.37-28,176,325.92-11,716,869.83

Finding the Fourth Proportional to 20,418,884.37, 28,176,325.92 and 11,716,869.83

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Solution

The fourth proportional to 20,418,884.37, 28,176,325.92 and 11,716,869.83 is: 16,168,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418,884.37 : 28,176,325.92 = 11,716,869.83 : x
  2. Step 2: Convert to fraction form
    20,418,884.37/28,176,325.92 = 11,716,869.83/x
  3. Step 3: Cross multiply
    20,418,884.37x = 28,176,325.92 × 11,716,869.83
  4. Step 4: Simplify right side
    20,418,884.37x = 330,138,342,951,413.38
  5. Step 5: Solve for x
    x = 330,138,342,951,413.38/20,418,884.37
  6. Step 6: Final answer
    x = 16,168,285.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.