Home / 20,801,584.22-28,699,215.17-11,980,859.18

Finding the Fourth Proportional to 20,801,584.22, 28,699,215.17 and 11,980,859.18

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Solution

The fourth proportional to 20,801,584.22, 28,699,215.17 and 11,980,859.18 is: 16,529,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,584.22 : 28,699,215.17 = 11,980,859.18 : x
  2. Step 2: Convert to fraction form
    20,801,584.22/28,699,215.17 = 11,980,859.18/x
  3. Step 3: Cross multiply
    20,801,584.22x = 28,699,215.17 × 11,980,859.18
  4. Step 4: Simplify right side
    20,801,584.22x = 343,841,255,324,889.38
  5. Step 5: Solve for x
    x = 343,841,255,324,889.38/20,801,584.22
  6. Step 6: Final answer
    x = 16,529,570.62

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1.5x scale

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.