Home / 398,601,380.20-597,902,070.30-343,118,939.80

Finding the Fourth Proportional to 398,601,380.20, 597,902,070.30 and 343,118,939.80

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Solution

The fourth proportional to 398,601,380.20, 597,902,070.30 and 343,118,939.80 is: 514,678,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,601,380.20 : 597,902,070.30 = 343,118,939.80 : x
  2. Step 2: Convert to fraction form
    398,601,380.20/597,902,070.30 = 343,118,939.80/x
  3. Step 3: Cross multiply
    398,601,380.20x = 597,902,070.30 × 343,118,939.80
  4. Step 4: Simplify right side
    398,601,380.20x = 205,151,524,465,561,056
  5. Step 5: Solve for x
    x = 205,151,524,465,561,056/398,601,380.20
  6. Step 6: Final answer
    x = 514,678,409.70

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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.