Home / 20,986,803.04-28,961,399.34-11,439,167.20

Finding the Fourth Proportional to 20,986,803.04, 28,961,399.34 and 11,439,167.20

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Solution

The fourth proportional to 20,986,803.04, 28,961,399.34 and 11,439,167.20 is: 15,785,838.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,803.04 : 28,961,399.34 = 11,439,167.20 : x
  2. Step 2: Convert to fraction form
    20,986,803.04/28,961,399.34 = 11,439,167.20/x
  3. Step 3: Cross multiply
    20,986,803.04x = 28,961,399.34 × 11,439,167.20
  4. Step 4: Simplify right side
    20,986,803.04x = 331,294,289,396,229.62
  5. Step 5: Solve for x
    x = 331,294,289,396,229.62/20,986,803.04
  6. Step 6: Final answer
    x = 15,785,838.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.