Home / 403,618,897.20-605,428,345.80-219,474,590.70

Finding the Fourth Proportional to 403,618,897.20, 605,428,345.80 and 219,474,590.70

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Solution

The fourth proportional to 403,618,897.20, 605,428,345.80 and 219,474,590.70 is: 329,211,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,618,897.20 : 605,428,345.80 = 219,474,590.70 : x
  2. Step 2: Convert to fraction form
    403,618,897.20/605,428,345.80 = 219,474,590.70/x
  3. Step 3: Cross multiply
    403,618,897.20x = 605,428,345.80 × 219,474,590.70
  4. Step 4: Simplify right side
    403,618,897.20x = 132,876,138,392,633,040
  5. Step 5: Solve for x
    x = 132,876,138,392,633,040/403,618,897.20
  6. Step 6: Final answer
    x = 329,211,886.05

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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.