Home / 60,505,939.80-90,767,204.10-20,112,211.80

Finding the Fourth Proportional to 60,505,939.80, 90,767,204.10 and 20,112,211.80

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Solution

The fourth proportional to 60,505,939.80, 90,767,204.10 and 20,112,211.80 is: 30,171,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,505,939.80 : 90,767,204.10 = 20,112,211.80 : x
  2. Step 2: Convert to fraction form
    60,505,939.80/90,767,204.10 = 20,112,211.80/x
  3. Step 3: Cross multiply
    60,505,939.80x = 90,767,204.10 × 20,112,211.80
  4. Step 4: Simplify right side
    60,505,939.80x = 1,825,529,233,353,028.25
  5. Step 5: Solve for x
    x = 1,825,529,233,353,028.25/60,505,939.80
  6. Step 6: Final answer
    x = 30,171,074.76

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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.