Home / 398,686,099.20-598,141,123.20-194,220,844.80

Finding the Fourth Proportional to 398,686,099.20, 598,141,123.20 and 194,220,844.80

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Solution

The fourth proportional to 398,686,099.20, 598,141,123.20 and 194,220,844.80 is: 291,385,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,686,099.20 : 598,141,123.20 = 194,220,844.80 : x
  2. Step 2: Convert to fraction form
    398,686,099.20/598,141,123.20 = 194,220,844.80/x
  3. Step 3: Cross multiply
    398,686,099.20x = 598,141,123.20 × 194,220,844.80
  4. Step 4: Simplify right side
    398,686,099.20x = 116,171,474,257,524,896
  5. Step 5: Solve for x
    x = 116,171,474,257,524,896/398,686,099.20
  6. Step 6: Final answer
    x = 291,385,815.78

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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.