Home / 20,733,612.80-31,100,419.20-13,194,003.20

Finding the Fourth Proportional to 20,733,612.80, 31,100,419.20 and 13,194,003.20

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Solution

The fourth proportional to 20,733,612.80, 31,100,419.20 and 13,194,003.20 is: 19,791,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,612.80 : 31,100,419.20 = 13,194,003.20 : x
  2. Step 2: Convert to fraction form
    20,733,612.80/31,100,419.20 = 13,194,003.20/x
  3. Step 3: Cross multiply
    20,733,612.80x = 31,100,419.20 × 13,194,003.20
  4. Step 4: Simplify right side
    20,733,612.80x = 410,339,030,446,141.44
  5. Step 5: Solve for x
    x = 410,339,030,446,141.44/20,733,612.80
  6. Step 6: Final answer
    x = 19,791,004.80

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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.