Home / 18,964,473.38-28,435,190.64-7,436,128.83

Finding the Fourth Proportional to 18,964,473.38, 28,435,190.64 and 7,436,128.83

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Solution

The fourth proportional to 18,964,473.38, 28,435,190.64 and 7,436,128.83 is: 11,149,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964,473.38 : 28,435,190.64 = 7,436,128.83 : x
  2. Step 2: Convert to fraction form
    18,964,473.38/28,435,190.64 = 7,436,128.83/x
  3. Step 3: Cross multiply
    18,964,473.38x = 28,435,190.64 × 7,436,128.83
  4. Step 4: Simplify right side
    18,964,473.38x = 211,447,740,904,650.16
  5. Step 5: Solve for x
    x = 211,447,740,904,650.16/18,964,473.38
  6. Step 6: Final answer
    x = 11,149,676.38

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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.