Home / 15,667,745.31-21,621,566.79-9,790,792.06

Finding the Fourth Proportional to 15,667,745.31, 21,621,566.79 and 9,790,792.06

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Solution

The fourth proportional to 15,667,745.31, 21,621,566.79 and 9,790,792.06 is: 13,511,341.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,667,745.31 : 21,621,566.79 = 9,790,792.06 : x
  2. Step 2: Convert to fraction form
    15,667,745.31/21,621,566.79 = 9,790,792.06/x
  3. Step 3: Cross multiply
    15,667,745.31x = 21,621,566.79 × 9,790,792.06
  4. Step 4: Simplify right side
    15,667,745.31x = 211,692,264,295,229.88
  5. Step 5: Solve for x
    x = 211,692,264,295,229.88/15,667,745.31
  6. Step 6: Final answer
    x = 13,511,341.94

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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.