Home / 128,317,399.66-192,399,234.33-40,841,131.54

Finding the Fourth Proportional to 128,317,399.66, 192,399,234.33 and 40,841,131.54

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Solution

The fourth proportional to 128,317,399.66, 192,399,234.33 and 40,841,131.54 is: 61,237,232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,399.66 : 192,399,234.33 = 40,841,131.54 : x
  2. Step 2: Convert to fraction form
    128,317,399.66/192,399,234.33 = 40,841,131.54/x
  3. Step 3: Cross multiply
    128,317,399.66x = 192,399,234.33 × 40,841,131.54
  4. Step 4: Simplify right side
    128,317,399.66x = 7,857,802,437,466,814
  5. Step 5: Solve for x
    x = 7,857,802,437,466,814/128,317,399.66
  6. Step 6: Final answer
    x = 61,237,232.51

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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.