Home / 128,015,204.73-192,023,305.29-30,970,756.59

Finding the Fourth Proportional to 128,015,204.73, 192,023,305.29 and 30,970,756.59

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Solution

The fourth proportional to 128,015,204.73, 192,023,305.29 and 30,970,756.59 is: 46,456,255.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,015,204.73 : 192,023,305.29 = 30,970,756.59 : x
  2. Step 2: Convert to fraction form
    128,015,204.73/192,023,305.29 = 30,970,756.59/x
  3. Step 3: Cross multiply
    128,015,204.73x = 192,023,305.29 × 30,970,756.59
  4. Step 4: Simplify right side
    128,015,204.73x = 5,947,107,047,743,849
  5. Step 5: Solve for x
    x = 5,947,107,047,743,849/128,015,204.73
  6. Step 6: Final answer
    x = 46,456,255.41

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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.