Home / 128,485,811.22-192,736,192.86-36,361,842.54

Finding the Fourth Proportional to 128,485,811.22, 192,736,192.86 and 36,361,842.54

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Solution

The fourth proportional to 128,485,811.22, 192,736,192.86 and 36,361,842.54 is: 54,544,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,485,811.22 : 192,736,192.86 = 36,361,842.54 : x
  2. Step 2: Convert to fraction form
    128,485,811.22/192,736,192.86 = 36,361,842.54/x
  3. Step 3: Cross multiply
    128,485,811.22x = 192,736,192.86 × 36,361,842.54
  4. Step 4: Simplify right side
    128,485,811.22x = 7,008,243,096,534,393
  5. Step 5: Solve for x
    x = 7,008,243,096,534,393/128,485,811.22
  6. Step 6: Final answer
    x = 54,544,879.55

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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.