Home / 20,669,884.80-31,004,827.20-16,185,993.60

Finding the Fourth Proportional to 20,669,884.80, 31,004,827.20 and 16,185,993.60

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Solution

The fourth proportional to 20,669,884.80, 31,004,827.20 and 16,185,993.60 is: 24,278,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,884.80 : 31,004,827.20 = 16,185,993.60 : x
  2. Step 2: Convert to fraction form
    20,669,884.80/31,004,827.20 = 16,185,993.60/x
  3. Step 3: Cross multiply
    20,669,884.80x = 31,004,827.20 × 16,185,993.60
  4. Step 4: Simplify right side
    20,669,884.80x = 501,843,934,628,305.88
  5. Step 5: Solve for x
    x = 501,843,934,628,305.88/20,669,884.80
  6. Step 6: Final answer
    x = 24,278,990.40

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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.