Home / 419,871,662.20-629,764,970.70-113,194,775.80

Finding the Fourth Proportional to 419,871,662.20, 629,764,970.70 and 113,194,775.80

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Solution

The fourth proportional to 419,871,662.20, 629,764,970.70 and 113,194,775.80 is: 169,780,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,871,662.20 : 629,764,970.70 = 113,194,775.80 : x
  2. Step 2: Convert to fraction form
    419,871,662.20/629,764,970.70 = 113,194,775.80/x
  3. Step 3: Cross multiply
    419,871,662.20x = 629,764,970.70 × 113,194,775.80
  4. Step 4: Simplify right side
    419,871,662.20x = 71,286,104,665,080,072
  5. Step 5: Solve for x
    x = 71,286,104,665,080,072/419,871,662.20
  6. Step 6: Final answer
    x = 169,780,699.87

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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.