Home / 398,972,405.80-597,324,867.90-353,622,773.80

Finding the Fourth Proportional to 398,972,405.80, 597,324,867.90 and 353,622,773.80

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Solution

The fourth proportional to 398,972,405.80, 597,324,867.90 and 353,622,773.80 is: 529,429,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,972,405.80 : 597,324,867.90 = 353,622,773.80 : x
  2. Step 2: Convert to fraction form
    398,972,405.80/597,324,867.90 = 353,622,773.80/x
  3. Step 3: Cross multiply
    398,972,405.80x = 597,324,867.90 × 353,622,773.80
  4. Step 4: Simplify right side
    398,972,405.80x = 211,227,676,646,516,576
  5. Step 5: Solve for x
    x = 211,227,676,646,516,576/398,972,405.80
  6. Step 6: Final answer
    x = 529,429,287.78

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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.