Home / 13,867,138-20,783,670.72-7,789,093.24

Finding the Fourth Proportional to 13,867,138, 20,783,670.72 and 7,789,093.24

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Solution

The fourth proportional to 13,867,138, 20,783,670.72 and 7,789,093.24 is: 11,674,070.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867,138 : 20,783,670.72 = 7,789,093.24 : x
  2. Step 2: Convert to fraction form
    13,867,138/20,783,670.72 = 7,789,093.24/x
  3. Step 3: Cross multiply
    13,867,138x = 20,783,670.72 × 7,789,093.24
  4. Step 4: Simplify right side
    13,867,138x = 161,885,949,107,537.94
  5. Step 5: Solve for x
    x = 161,885,949,107,537.94/13,867,138
  6. Step 6: Final answer
    x = 11,674,070.68

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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.