Home / 13,491,892-20,205,410-7,717,118.56

Finding the Fourth Proportional to 13,491,892, 20,205,410 and 7,717,118.56

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Solution

The fourth proportional to 13,491,892, 20,205,410 and 7,717,118.56 is: 11,557,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491,892 : 20,205,410 = 7,717,118.56 : x
  2. Step 2: Convert to fraction form
    13,491,892/20,205,410 = 7,717,118.56/x
  3. Step 3: Cross multiply
    13,491,892x = 20,205,410 × 7,717,118.56
  4. Step 4: Simplify right side
    13,491,892x = 155,927,544,523,409.59
  5. Step 5: Solve for x
    x = 155,927,544,523,409.59/13,491,892
  6. Step 6: Final answer
    x = 11,557,129.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.