Home / 20,560,168.62-28,373,032.89-11,392,811.37

Finding the Fourth Proportional to 20,560,168.62, 28,373,032.89 and 11,392,811.37

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Solution

The fourth proportional to 20,560,168.62, 28,373,032.89 and 11,392,811.37 is: 15,722,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560,168.62 : 28,373,032.89 = 11,392,811.37 : x
  2. Step 2: Convert to fraction form
    20,560,168.62/28,373,032.89 = 11,392,811.37/x
  3. Step 3: Cross multiply
    20,560,168.62x = 28,373,032.89 × 11,392,811.37
  4. Step 4: Simplify right side
    20,560,168.62x = 323,248,611,710,575.94
  5. Step 5: Solve for x
    x = 323,248,611,710,575.94/20,560,168.62
  6. Step 6: Final answer
    x = 15,722,079.80

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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.