Home / 128,317,723.11-192,399,718.23-40,841,454.60

Finding the Fourth Proportional to 128,317,723.11, 192,399,718.23 and 40,841,454.60

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Solution

The fourth proportional to 128,317,723.11, 192,399,718.23 and 40,841,454.60 is: 61,237,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,723.11 : 192,399,718.23 = 40,841,454.60 : x
  2. Step 2: Convert to fraction form
    128,317,723.11/192,399,718.23 = 40,841,454.60/x
  3. Step 3: Cross multiply
    128,317,723.11x = 192,399,718.23 × 40,841,454.60
  4. Step 4: Simplify right side
    128,317,723.11x = 7,857,884,357,143,337
  5. Step 5: Solve for x
    x = 7,857,884,357,143,337/128,317,723.11
  6. Step 6: Final answer
    x = 61,237,716.56

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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.