Home / 20,919,334.76-31,361,028.24-7,270,708.04

Finding the Fourth Proportional to 20,919,334.76, 31,361,028.24 and 7,270,708.04

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Solution

The fourth proportional to 20,919,334.76, 31,361,028.24 and 7,270,708.04 is: 10,899,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,919,334.76 : 31,361,028.24 = 7,270,708.04 : x
  2. Step 2: Convert to fraction form
    20,919,334.76/31,361,028.24 = 7,270,708.04/x
  3. Step 3: Cross multiply
    20,919,334.76x = 31,361,028.24 × 7,270,708.04
  4. Step 4: Simplify right side
    20,919,334.76x = 228,016,880,167,235.03
  5. Step 5: Solve for x
    x = 228,016,880,167,235.03/20,919,334.76
  6. Step 6: Final answer
    x = 10,899,815.07

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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.