Home / 28,161,837.96-38,856,675.42-15,938,694.60

Finding the Fourth Proportional to 28,161,837.96, 38,856,675.42 and 15,938,694.60

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Solution

The fourth proportional to 28,161,837.96, 38,856,675.42 and 15,938,694.60 is: 21,991,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,837.96 : 38,856,675.42 = 15,938,694.60 : x
  2. Step 2: Convert to fraction form
    28,161,837.96/38,856,675.42 = 15,938,694.60/x
  3. Step 3: Cross multiply
    28,161,837.96x = 38,856,675.42 × 15,938,694.60
  4. Step 4: Simplify right side
    28,161,837.96x = 619,324,682,690,706.75
  5. Step 5: Solve for x
    x = 619,324,682,690,706.75/28,161,837.96
  6. Step 6: Final answer
    x = 21,991,628.66

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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.