Home / 20,687,270.37-28,548,433.00-11,990,487.51

Finding the Fourth Proportional to 20,687,270.37, 28,548,433.00 and 11,990,487.51

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Solution

The fourth proportional to 20,687,270.37, 28,548,433.00 and 11,990,487.51 is: 16,546,872.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,270.37 : 28,548,433.00 = 11,990,487.51 : x
  2. Step 2: Convert to fraction form
    20,687,270.37/28,548,433.00 = 11,990,487.51/x
  3. Step 3: Cross multiply
    20,687,270.37x = 28,548,433.00 × 11,990,487.51
  4. Step 4: Simplify right side
    20,687,270.37x = 342,309,629,113,877.25
  5. Step 5: Solve for x
    x = 342,309,629,113,877.25/20,687,270.37
  6. Step 6: Final answer
    x = 16,546,872.69

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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.