Home / 69,689,107.62-104,526,850.14-21,167,382.78

Finding the Fourth Proportional to 69,689,107.62, 104,526,850.14 and 21,167,382.78

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Solution

The fourth proportional to 69,689,107.62, 104,526,850.14 and 21,167,382.78 is: 31,749,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,689,107.62 : 104,526,850.14 = 21,167,382.78 : x
  2. Step 2: Convert to fraction form
    69,689,107.62/104,526,850.14 = 21,167,382.78/x
  3. Step 3: Cross multiply
    69,689,107.62x = 104,526,850.14 × 21,167,382.78
  4. Step 4: Simplify right side
    69,689,107.62x = 2,212,559,847,701,076.75
  5. Step 5: Solve for x
    x = 2,212,559,847,701,076.75/69,689,107.62
  6. Step 6: Final answer
    x = 31,749,005.31

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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.