Home / 128,317,403.49-192,399,240.08-40,841,135.36

Finding the Fourth Proportional to 128,317,403.49, 192,399,240.08 and 40,841,135.36

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Solution

The fourth proportional to 128,317,403.49, 192,399,240.08 and 40,841,135.36 is: 61,237,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,403.49 : 192,399,240.08 = 40,841,135.36 : x
  2. Step 2: Convert to fraction form
    128,317,403.49/192,399,240.08 = 40,841,135.36/x
  3. Step 3: Cross multiply
    128,317,403.49x = 192,399,240.08 × 40,841,135.36
  4. Step 4: Simplify right side
    128,317,403.49x = 7,857,803,406,102,214
  5. Step 5: Solve for x
    x = 7,857,803,406,102,214/128,317,403.49
  6. Step 6: Final answer
    x = 61,237,238.23

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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.