Home / 128,902,346.57-193,351,625.33-31,858,062.52

Finding the Fourth Proportional to 128,902,346.57, 193,351,625.33 and 31,858,062.52

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Solution

The fourth proportional to 128,902,346.57, 193,351,625.33 and 31,858,062.52 is: 47,786,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,902,346.57 : 193,351,625.33 = 31,858,062.52 : x
  2. Step 2: Convert to fraction form
    128,902,346.57/193,351,625.33 = 31,858,062.52/x
  3. Step 3: Cross multiply
    128,902,346.57x = 193,351,625.33 × 31,858,062.52
  4. Step 4: Simplify right side
    128,902,346.57x = 6,159,808,168,106,756
  5. Step 5: Solve for x
    x = 6,159,808,168,106,756/128,902,346.57
  6. Step 6: Final answer
    x = 47,786,625.55

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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.