Home / 128,485,812.22-192,736,194.36-36,361,843.54

Finding the Fourth Proportional to 128,485,812.22, 192,736,194.36 and 36,361,843.54

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Solution

The fourth proportional to 128,485,812.22, 192,736,194.36 and 36,361,843.54 is: 54,544,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,485,812.22 : 192,736,194.36 = 36,361,843.54 : x
  2. Step 2: Convert to fraction form
    128,485,812.22/192,736,194.36 = 36,361,843.54/x
  3. Step 3: Cross multiply
    128,485,812.22x = 192,736,194.36 × 36,361,843.54
  4. Step 4: Simplify right side
    128,485,812.22x = 7,008,243,343,813,351
  5. Step 5: Solve for x
    x = 7,008,243,343,813,351/128,485,812.22
  6. Step 6: Final answer
    x = 54,544,881.05

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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.