Home / 419,871,807.68-629,765,188.11-113,194,921.28

Finding the Fourth Proportional to 419,871,807.68, 629,765,188.11 and 113,194,921.28

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Solution

The fourth proportional to 419,871,807.68, 629,765,188.11 and 113,194,921.28 is: 169,780,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,871,807.68 : 629,765,188.11 = 113,194,921.28 : x
  2. Step 2: Convert to fraction form
    419,871,807.68/629,765,188.11 = 113,194,921.28/x
  3. Step 3: Cross multiply
    419,871,807.68x = 629,765,188.11 × 113,194,921.28
  4. Step 4: Simplify right side
    419,871,807.68x = 71,286,220,889,847,024
  5. Step 5: Solve for x
    x = 71,286,220,889,847,024/419,871,807.68
  6. Step 6: Final answer
    x = 169,780,917.86

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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.