Home / 20,330,557.22-28,056,169.11-11,163,199.97

Finding the Fourth Proportional to 20,330,557.22, 28,056,169.11 and 11,163,199.97

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Solution

The fourth proportional to 20,330,557.22, 28,056,169.11 and 11,163,199.97 is: 15,405,216.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330,557.22 : 28,056,169.11 = 11,163,199.97 : x
  2. Step 2: Convert to fraction form
    20,330,557.22/28,056,169.11 = 11,163,199.97/x
  3. Step 3: Cross multiply
    20,330,557.22x = 28,056,169.11 × 11,163,199.97
  4. Step 4: Simplify right side
    20,330,557.22x = 313,196,626,167,066.94
  5. Step 5: Solve for x
    x = 313,196,626,167,066.94/20,330,557.22
  6. Step 6: Final answer
    x = 15,405,216.04

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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.