Home / 128,317,404.99-192,399,242.31-40,841,136.87

Finding the Fourth Proportional to 128,317,404.99, 192,399,242.31 and 40,841,136.87

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Solution

The fourth proportional to 128,317,404.99, 192,399,242.31 and 40,841,136.87 is: 61,237,240.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,404.99 : 192,399,242.31 = 40,841,136.87 : x
  2. Step 2: Convert to fraction form
    128,317,404.99/192,399,242.31 = 40,841,136.87/x
  3. Step 3: Cross multiply
    128,317,404.99x = 192,399,242.31 × 40,841,136.87
  4. Step 4: Simplify right side
    128,317,404.99x = 7,857,803,788,867,005
  5. Step 5: Solve for x
    x = 7,857,803,788,867,005/128,317,404.99
  6. Step 6: Final answer
    x = 61,237,240.49

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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.