Home / 20,764,409.20-31,146,322.20-9,404,839.60

Finding the Fourth Proportional to 20,764,409.20, 31,146,322.20 and 9,404,839.60

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Solution

The fourth proportional to 20,764,409.20, 31,146,322.20 and 9,404,839.60 is: 14,107,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,409.20 : 31,146,322.20 = 9,404,839.60 : x
  2. Step 2: Convert to fraction form
    20,764,409.20/31,146,322.20 = 9,404,839.60/x
  3. Step 3: Cross multiply
    20,764,409.20x = 31,146,322.20 × 9,404,839.60
  4. Step 4: Simplify right side
    20,764,409.20x = 292,926,164,420,919.12
  5. Step 5: Solve for x
    x = 292,926,164,420,919.12/20,764,409.20
  6. Step 6: Final answer
    x = 14,107,127.33

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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.