Home / 20,881,546.62-31,318,586.96-13,285,949.82

Finding the Fourth Proportional to 20,881,546.62, 31,318,586.96 and 13,285,949.82

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Solution

The fourth proportional to 20,881,546.62, 31,318,586.96 and 13,285,949.82 is: 19,926,549.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,546.62 : 31,318,586.96 = 13,285,949.82 : x
  2. Step 2: Convert to fraction form
    20,881,546.62/31,318,586.96 = 13,285,949.82/x
  3. Step 3: Cross multiply
    20,881,546.62x = 31,318,586.96 × 13,285,949.82
  4. Step 4: Simplify right side
    20,881,546.62x = 416,097,174,783,866.38
  5. Step 5: Solve for x
    x = 416,097,174,783,866.38/20,881,546.62
  6. Step 6: Final answer
    x = 19,926,549.62

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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.