Home / 128,317,693.76-192,399,674.42-40,841,425.33

Finding the Fourth Proportional to 128,317,693.76, 192,399,674.42 and 40,841,425.33

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Solution

The fourth proportional to 128,317,693.76, 192,399,674.42 and 40,841,425.33 is: 61,237,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,693.76 : 192,399,674.42 = 40,841,425.33 : x
  2. Step 2: Convert to fraction form
    128,317,693.76/192,399,674.42 = 40,841,425.33/x
  3. Step 3: Cross multiply
    128,317,693.76x = 192,399,674.42 × 40,841,425.33
  4. Step 4: Simplify right side
    128,317,693.76x = 7,857,876,935,961,846
  5. Step 5: Solve for x
    x = 7,857,876,935,961,846/128,317,693.76
  6. Step 6: Final answer
    x = 61,237,672.73

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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.