Home / 398,686,100.70-598,141,125.45-194,220,846.30

Finding the Fourth Proportional to 398,686,100.70, 598,141,125.45 and 194,220,846.30

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Solution

The fourth proportional to 398,686,100.70, 598,141,125.45 and 194,220,846.30 is: 291,385,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,686,100.70 : 598,141,125.45 = 194,220,846.30 : x
  2. Step 2: Convert to fraction form
    398,686,100.70/598,141,125.45 = 194,220,846.30/x
  3. Step 3: Cross multiply
    398,686,100.70x = 598,141,125.45 × 194,220,846.30
  4. Step 4: Simplify right side
    398,686,100.70x = 116,171,475,591,733,488
  5. Step 5: Solve for x
    x = 116,171,475,591,733,488/398,686,100.70
  6. Step 6: Final answer
    x = 291,385,818.04

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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.