Home / 20,769,604.41-31,155,735.22-7,990,109.12

Finding the Fourth Proportional to 20,769,604.41, 31,155,735.22 and 7,990,109.12

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Solution

The fourth proportional to 20,769,604.41, 31,155,735.22 and 7,990,109.12 is: 11,985,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,604.41 : 31,155,735.22 = 7,990,109.12 : x
  2. Step 2: Convert to fraction form
    20,769,604.41/31,155,735.22 = 7,990,109.12/x
  3. Step 3: Cross multiply
    20,769,604.41x = 31,155,735.22 × 7,990,109.12
  4. Step 4: Simplify right side
    20,769,604.41x = 248,937,723,945,873.28
  5. Step 5: Solve for x
    x = 248,937,723,945,873.28/20,769,604.41
  6. Step 6: Final answer
    x = 11,985,674.79

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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.