Home / 20,672,516.12-31,006,412.19-5,527,628.60

Finding the Fourth Proportional to 20,672,516.12, 31,006,412.19 and 5,527,628.60

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Solution

The fourth proportional to 20,672,516.12, 31,006,412.19 and 5,527,628.60 is: 8,290,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,516.12 : 31,006,412.19 = 5,527,628.60 : x
  2. Step 2: Convert to fraction form
    20,672,516.12/31,006,412.19 = 5,527,628.60/x
  3. Step 3: Cross multiply
    20,672,516.12x = 31,006,412.19 × 5,527,628.60
  4. Step 4: Simplify right side
    20,672,516.12x = 171,391,930,895,873.47
  5. Step 5: Solve for x
    x = 171,391,930,895,873.47/20,672,516.12
  6. Step 6: Final answer
    x = 8,290,811.33

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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.