Home / 21,580,351-29,780,536.80-11,790,584.96

Finding the Fourth Proportional to 21,580,351, 29,780,536.80 and 11,790,584.96

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Solution

The fourth proportional to 21,580,351, 29,780,536.80 and 11,790,584.96 is: 16,270,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,351 : 29,780,536.80 = 11,790,584.96 : x
  2. Step 2: Convert to fraction form
    21,580,351/29,780,536.80 = 11,790,584.96/x
  3. Step 3: Cross multiply
    21,580,351x = 29,780,536.80 × 11,790,584.96
  4. Step 4: Simplify right side
    21,580,351x = 351,129,949,294,806.56
  5. Step 5: Solve for x
    x = 351,129,949,294,806.56/21,580,351
  6. Step 6: Final answer
    x = 16,270,817.34

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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.