Home / 128,317,403.24-192,399,239.71-40,841,135.11

Finding the Fourth Proportional to 128,317,403.24, 192,399,239.71 and 40,841,135.11

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Solution

The fourth proportional to 128,317,403.24, 192,399,239.71 and 40,841,135.11 is: 61,237,237.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,403.24 : 192,399,239.71 = 40,841,135.11 : x
  2. Step 2: Convert to fraction form
    128,317,403.24/192,399,239.71 = 40,841,135.11/x
  3. Step 3: Cross multiply
    128,317,403.24x = 192,399,239.71 × 40,841,135.11
  4. Step 4: Simplify right side
    128,317,403.24x = 7,857,803,344,057,387
  5. Step 5: Solve for x
    x = 7,857,803,344,057,387/128,317,403.24
  6. Step 6: Final answer
    x = 61,237,237.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.