Home / 15,202,420.77-20,981,427.94-9,321,014.85

Finding the Fourth Proportional to 15,202,420.77, 20,981,427.94 and 9,321,014.85

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Solution

The fourth proportional to 15,202,420.77, 20,981,427.94 and 9,321,014.85 is: 12,864,280.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202,420.77 : 20,981,427.94 = 9,321,014.85 : x
  2. Step 2: Convert to fraction form
    15,202,420.77/20,981,427.94 = 9,321,014.85/x
  3. Step 3: Cross multiply
    15,202,420.77x = 20,981,427.94 × 9,321,014.85
  4. Step 4: Simplify right side
    15,202,420.77x = 195,568,201,402,944.91
  5. Step 5: Solve for x
    x = 195,568,201,402,944.91/15,202,420.77
  6. Step 6: Final answer
    x = 12,864,280.26

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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.