Home / 15,786,869.22-21,785,879.67-8,543,525.22

Finding the Fourth Proportional to 15,786,869.22, 21,785,879.67 and 8,543,525.22

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Solution

The fourth proportional to 15,786,869.22, 21,785,879.67 and 8,543,525.22 is: 11,790,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,869.22 : 21,785,879.67 = 8,543,525.22 : x
  2. Step 2: Convert to fraction form
    15,786,869.22/21,785,879.67 = 8,543,525.22/x
  3. Step 3: Cross multiply
    15,786,869.22x = 21,785,879.67 × 8,543,525.22
  4. Step 4: Simplify right side
    15,786,869.22x = 186,128,212,400,530.31
  5. Step 5: Solve for x
    x = 186,128,212,400,530.31/15,786,869.22
  6. Step 6: Final answer
    x = 11,790,064.88

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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.