Home / 20,455,325.92-28,227,914.60-11,162,587.96

Finding the Fourth Proportional to 20,455,325.92, 28,227,914.60 and 11,162,587.96

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Solution

The fourth proportional to 20,455,325.92, 28,227,914.60 and 11,162,587.96 is: 15,404,133.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,325.92 : 28,227,914.60 = 11,162,587.96 : x
  2. Step 2: Convert to fraction form
    20,455,325.92/28,227,914.60 = 11,162,587.96/x
  3. Step 3: Cross multiply
    20,455,325.92x = 28,227,914.60 × 11,162,587.96
  4. Step 4: Simplify right side
    20,455,325.92x = 315,096,579,649,868.25
  5. Step 5: Solve for x
    x = 315,096,579,649,868.25/20,455,325.92
  6. Step 6: Final answer
    x = 15,404,133.91

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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.