Home / 69,760,900.20-104,641,350.30-21,238,368.60

Finding the Fourth Proportional to 69,760,900.20, 104,641,350.30 and 21,238,368.60

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Solution

The fourth proportional to 69,760,900.20, 104,641,350.30 and 21,238,368.60 is: 31,857,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,760,900.20 : 104,641,350.30 = 21,238,368.60 : x
  2. Step 2: Convert to fraction form
    69,760,900.20/104,641,350.30 = 21,238,368.60/x
  3. Step 3: Cross multiply
    69,760,900.20x = 104,641,350.30 × 21,238,368.60
  4. Step 4: Simplify right side
    69,760,900.20x = 2,222,411,568,473,120.75
  5. Step 5: Solve for x
    x = 2,222,411,568,473,120.75/69,760,900.20
  6. Step 6: Final answer
    x = 31,857,552.90

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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.