Home / 20,787,877.67-31,181,472.72-6,214,830.77

Finding the Fourth Proportional to 20,787,877.67, 31,181,472.72 and 6,214,830.77

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Solution

The fourth proportional to 20,787,877.67, 31,181,472.72 and 6,214,830.77 is: 9,322,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,787,877.67 : 31,181,472.72 = 6,214,830.77 : x
  2. Step 2: Convert to fraction form
    20,787,877.67/31,181,472.72 = 6,214,830.77/x
  3. Step 3: Cross multiply
    20,787,877.67x = 31,181,472.72 × 6,214,830.77
  4. Step 4: Simplify right side
    20,787,877.67x = 193,787,576,192,125.28
  5. Step 5: Solve for x
    x = 193,787,576,192,125.28/20,787,877.67
  6. Step 6: Final answer
    x = 9,322,143.38

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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.