Home / 15,661,419.64-21,612,906.62-8,786,049.32

Finding the Fourth Proportional to 15,661,419.64, 21,612,906.62 and 8,786,049.32

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Solution

The fourth proportional to 15,661,419.64, 21,612,906.62 and 8,786,049.32 is: 12,124,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661,419.64 : 21,612,906.62 = 8,786,049.32 : x
  2. Step 2: Convert to fraction form
    15,661,419.64/21,612,906.62 = 8,786,049.32/x
  3. Step 3: Cross multiply
    15,661,419.64x = 21,612,906.62 × 8,786,049.32
  4. Step 4: Simplify right side
    15,661,419.64x = 189,892,063,511,874.50
  5. Step 5: Solve for x
    x = 189,892,063,511,874.50/15,661,419.64
  6. Step 6: Final answer
    x = 12,124,830.82

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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.