Home / 122,485,879.70-183,728,819.55-100,962,519.20

Finding the Fourth Proportional to 122,485,879.70, 183,728,819.55 and 100,962,519.20

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Solution

The fourth proportional to 122,485,879.70, 183,728,819.55 and 100,962,519.20 is: 151,443,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,485,879.70 : 183,728,819.55 = 100,962,519.20 : x
  2. Step 2: Convert to fraction form
    122,485,879.70/183,728,819.55 = 100,962,519.20/x
  3. Step 3: Cross multiply
    122,485,879.70x = 183,728,819.55 × 100,962,519.20
  4. Step 4: Simplify right side
    122,485,879.70x = 18,549,724,471,410,212
  5. Step 5: Solve for x
    x = 18,549,724,471,410,212/122,485,879.70
  6. Step 6: Final answer
    x = 151,443,778.80

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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.