Home / 72,184,018.80-108,276,028.20-55,177,906.80

Finding the Fourth Proportional to 72,184,018.80, 108,276,028.20 and 55,177,906.80

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Solution

The fourth proportional to 72,184,018.80, 108,276,028.20 and 55,177,906.80 is: 82,766,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,184,018.80 : 108,276,028.20 = 55,177,906.80 : x
  2. Step 2: Convert to fraction form
    72,184,018.80/108,276,028.20 = 55,177,906.80/x
  3. Step 3: Cross multiply
    72,184,018.80x = 108,276,028.20 × 55,177,906.80
  4. Step 4: Simplify right side
    72,184,018.80x = 5,974,444,592,693,772
  5. Step 5: Solve for x
    x = 5,974,444,592,693,772/72,184,018.80
  6. Step 6: Final answer
    x = 82,766,860.20

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Similar ratio
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1.5x scale

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.