Home / 442,836,406.80-664,254,610.20-339,524,276.40

Finding the Fourth Proportional to 442,836,406.80, 664,254,610.20 and 339,524,276.40

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Solution

The fourth proportional to 442,836,406.80, 664,254,610.20 and 339,524,276.40 is: 509,286,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,836,406.80 : 664,254,610.20 = 339,524,276.40 : x
  2. Step 2: Convert to fraction form
    442,836,406.80/664,254,610.20 = 339,524,276.40/x
  3. Step 3: Cross multiply
    442,836,406.80x = 664,254,610.20 × 339,524,276.40
  4. Step 4: Simplify right side
    442,836,406.80x = 225,530,565,873,519,072
  5. Step 5: Solve for x
    x = 225,530,565,873,519,072/442,836,406.80
  6. Step 6: Final answer
    x = 509,286,414.60

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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.