Home / 252,733,811.20-379,100,716.80-211,919,142.40

Finding the Fourth Proportional to 252,733,811.20, 379,100,716.80 and 211,919,142.40

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Solution

The fourth proportional to 252,733,811.20, 379,100,716.80 and 211,919,142.40 is: 317,878,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,733,811.20 : 379,100,716.80 = 211,919,142.40 : x
  2. Step 2: Convert to fraction form
    252,733,811.20/379,100,716.80 = 211,919,142.40/x
  3. Step 3: Cross multiply
    252,733,811.20x = 379,100,716.80 × 211,919,142.40
  4. Step 4: Simplify right side
    252,733,811.20x = 80,338,698,787,481,280
  5. Step 5: Solve for x
    x = 80,338,698,787,481,280/252,733,811.20
  6. Step 6: Final answer
    x = 317,878,713.60

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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.