Home / 72,184,019.80-108,276,029.70-55,177,907.80

Finding the Fourth Proportional to 72,184,019.80, 108,276,029.70 and 55,177,907.80

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Solution

The fourth proportional to 72,184,019.80, 108,276,029.70 and 55,177,907.80 is: 82,766,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,184,019.80 : 108,276,029.70 = 55,177,907.80 : x
  2. Step 2: Convert to fraction form
    72,184,019.80/108,276,029.70 = 55,177,907.80/x
  3. Step 3: Cross multiply
    72,184,019.80x = 108,276,029.70 × 55,177,907.80
  4. Step 4: Simplify right side
    72,184,019.80x = 5,974,444,783,736,662
  5. Step 5: Solve for x
    x = 5,974,444,783,736,662/72,184,019.80
  6. Step 6: Final answer
    x = 82,766,861.70

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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.