Home / 20,685,056.22-28,545,575.91-11,392,836.96

Finding the Fourth Proportional to 20,685,056.22, 28,545,575.91 and 11,392,836.96

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Solution

The fourth proportional to 20,685,056.22, 28,545,575.91 and 11,392,836.96 is: 15,722,224.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685,056.22 : 28,545,575.91 = 11,392,836.96 : x
  2. Step 2: Convert to fraction form
    20,685,056.22/28,545,575.91 = 11,392,836.96/x
  3. Step 3: Cross multiply
    20,685,056.22x = 28,545,575.91 × 11,392,836.96
  4. Step 4: Simplify right side
    20,685,056.22x = 325,215,092,271,933.69
  5. Step 5: Solve for x
    x = 325,215,092,271,933.69/20,685,056.22
  6. Step 6: Final answer
    x = 15,722,224.24

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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.