Home / 403,618,927.20-605,428,390.80-219,474,620.70

Finding the Fourth Proportional to 403,618,927.20, 605,428,390.80 and 219,474,620.70

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Solution

The fourth proportional to 403,618,927.20, 605,428,390.80 and 219,474,620.70 is: 329,211,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,618,927.20 : 605,428,390.80 = 219,474,620.70 : x
  2. Step 2: Convert to fraction form
    403,618,927.20/605,428,390.80 = 219,474,620.70/x
  3. Step 3: Cross multiply
    403,618,927.20x = 605,428,390.80 × 219,474,620.70
  4. Step 4: Simplify right side
    403,618,927.20x = 132,876,166,431,841,344
  5. Step 5: Solve for x
    x = 132,876,166,431,841,344/403,618,927.20
  6. Step 6: Final answer
    x = 329,211,931.05

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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.