Home / 321,012,775.49-480,701,734.92-211,505,952.80

Finding the Fourth Proportional to 321,012,775.49, 480,701,734.92 and 211,505,952.80

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Solution

The fourth proportional to 321,012,775.49, 480,701,734.92 and 211,505,952.80 is: 316,720,349.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,012,775.49 : 480,701,734.92 = 211,505,952.80 : x
  2. Step 2: Convert to fraction form
    321,012,775.49/480,701,734.92 = 211,505,952.80/x
  3. Step 3: Cross multiply
    321,012,775.49x = 480,701,734.92 × 211,505,952.80
  4. Step 4: Simplify right side
    321,012,775.49x = 101,671,278,458,069,392
  5. Step 5: Solve for x
    x = 101,671,278,458,069,392/321,012,775.49
  6. Step 6: Final answer
    x = 316,720,349.54

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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.