Home / 20,972,215.41-28,942,555.18-11,679,785.42

Finding the Fourth Proportional to 20,972,215.41, 28,942,555.18 and 11,679,785.42

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Solution

The fourth proportional to 20,972,215.41, 28,942,555.18 and 11,679,785.42 is: 16,118,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,972,215.41 : 28,942,555.18 = 11,679,785.42 : x
  2. Step 2: Convert to fraction form
    20,972,215.41/28,942,555.18 = 11,679,785.42/x
  3. Step 3: Cross multiply
    20,972,215.41x = 28,942,555.18 × 11,679,785.42
  4. Step 4: Simplify right side
    20,972,215.41x = 338,042,833,856,896.81
  5. Step 5: Solve for x
    x = 338,042,833,856,896.81/20,972,215.41
  6. Step 6: Final answer
    x = 16,118,603.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.