Home / 128,317,415.52-192,399,258.06-40,841,147.40

Finding the Fourth Proportional to 128,317,415.52, 192,399,258.06 and 40,841,147.40

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Solution

The fourth proportional to 128,317,415.52, 192,399,258.06 and 40,841,147.40 is: 61,237,256.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,415.52 : 192,399,258.06 = 40,841,147.40 : x
  2. Step 2: Convert to fraction form
    128,317,415.52/192,399,258.06 = 40,841,147.40/x
  3. Step 3: Cross multiply
    128,317,415.52x = 192,399,258.06 × 40,841,147.40
  4. Step 4: Simplify right side
    128,317,415.52x = 7,857,806,458,079,098
  5. Step 5: Solve for x
    x = 7,857,806,458,079,098/128,317,415.52
  6. Step 6: Final answer
    x = 61,237,256.27

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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.