Home / 442,959,811.40-664,439,717.10-212,873,414.60

Finding the Fourth Proportional to 442,959,811.40, 664,439,717.10 and 212,873,414.60

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Solution

The fourth proportional to 442,959,811.40, 664,439,717.10 and 212,873,414.60 is: 319,310,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,959,811.40 : 664,439,717.10 = 212,873,414.60 : x
  2. Step 2: Convert to fraction form
    442,959,811.40/664,439,717.10 = 212,873,414.60/x
  3. Step 3: Cross multiply
    442,959,811.40x = 664,439,717.10 × 212,873,414.60
  4. Step 4: Simplify right side
    442,959,811.40x = 141,441,551,374,935,008
  5. Step 5: Solve for x
    x = 141,441,551,374,935,008/442,959,811.40
  6. Step 6: Final answer
    x = 319,310,121.90

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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.