Home / 15,786,873.86-21,785,886.09-8,543,529.86

Finding the Fourth Proportional to 15,786,873.86, 21,785,886.09 and 8,543,529.86

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Solution

The fourth proportional to 15,786,873.86, 21,785,886.09 and 8,543,529.86 is: 11,790,071.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,873.86 : 21,785,886.09 = 8,543,529.86 : x
  2. Step 2: Convert to fraction form
    15,786,873.86/21,785,886.09 = 8,543,529.86/x
  3. Step 3: Cross multiply
    15,786,873.86x = 21,785,886.09 × 8,543,529.86
  4. Step 4: Simplify right side
    15,786,873.86x = 186,128,368,227,544.22
  5. Step 5: Solve for x
    x = 186,128,368,227,544.22/15,786,873.86
  6. Step 6: Final answer
    x = 11,790,071.29

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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.