Home / 15,786,869.10-21,785,879.50-8,543,525.10

Finding the Fourth Proportional to 15,786,869.10, 21,785,879.50 and 8,543,525.10

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Solution

The fourth proportional to 15,786,869.10, 21,785,879.50 and 8,543,525.10 is: 11,790,064.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,869.10 : 21,785,879.50 = 8,543,525.10 : x
  2. Step 2: Convert to fraction form
    15,786,869.10/21,785,879.50 = 8,543,525.10/x
  3. Step 3: Cross multiply
    15,786,869.10x = 21,785,879.50 × 8,543,525.10
  4. Step 4: Simplify right side
    15,786,869.10x = 186,128,208,333,825.44
  5. Step 5: Solve for x
    x = 186,128,208,333,825.44/15,786,869.10
  6. Step 6: Final answer
    x = 11,790,064.71

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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.