Home / 128,317,404.24-192,399,241.21-40,841,136.11

Finding the Fourth Proportional to 128,317,404.24, 192,399,241.21 and 40,841,136.11

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Solution

The fourth proportional to 128,317,404.24, 192,399,241.21 and 40,841,136.11 is: 61,237,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,404.24 : 192,399,241.21 = 40,841,136.11 : x
  2. Step 2: Convert to fraction form
    128,317,404.24/192,399,241.21 = 40,841,136.11/x
  3. Step 3: Cross multiply
    128,317,404.24x = 192,399,241.21 × 40,841,136.11
  4. Step 4: Simplify right side
    128,317,404.24x = 7,857,803,597,718,331
  5. Step 5: Solve for x
    x = 7,857,803,597,718,331/128,317,404.24
  6. Step 6: Final answer
    x = 61,237,239.36

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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.