Home / 128,317,405.65-192,399,243.29-40,841,137.52

Finding the Fourth Proportional to 128,317,405.65, 192,399,243.29 and 40,841,137.52

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Solution

The fourth proportional to 128,317,405.65, 192,399,243.29 and 40,841,137.52 is: 61,237,241.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,405.65 : 192,399,243.29 = 40,841,137.52 : x
  2. Step 2: Convert to fraction form
    128,317,405.65/192,399,243.29 = 40,841,137.52/x
  3. Step 3: Cross multiply
    128,317,405.65x = 192,399,243.29 × 40,841,137.52
  4. Step 4: Simplify right side
    128,317,405.65x = 7,857,803,953,950,828
  5. Step 5: Solve for x
    x = 7,857,803,953,950,828/128,317,405.65
  6. Step 6: Final answer
    x = 61,237,241.47

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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.