Home / 28,560,072.93-39,412,947.29-15,507,357.09

Finding the Fourth Proportional to 28,560,072.93, 39,412,947.29 and 15,507,357.09

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Solution

The fourth proportional to 28,560,072.93, 39,412,947.29 and 15,507,357.09 is: 21,400,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560,072.93 : 39,412,947.29 = 15,507,357.09 : x
  2. Step 2: Convert to fraction form
    28,560,072.93/39,412,947.29 = 15,507,357.09/x
  3. Step 3: Cross multiply
    28,560,072.93x = 39,412,947.29 × 15,507,357.09
  4. Step 4: Simplify right side
    28,560,072.93x = 611,190,647,595,377.75
  5. Step 5: Solve for x
    x = 611,190,647,595,377.75/28,560,072.93
  6. Step 6: Final answer
    x = 21,400,178.11

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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.