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Finding the Fourth Proportional to 479,471,481.90, 661,672,388.79 and 259,454,907.90

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Solution

The fourth proportional to 479,471,481.90, 661,672,388.79 and 259,454,907.90 is: 358,048,716.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,471,481.90 : 661,672,388.79 = 259,454,907.90 : x
  2. Step 2: Convert to fraction form
    479,471,481.90/661,672,388.79 = 259,454,907.90/x
  3. Step 3: Cross multiply
    479,471,481.90x = 661,672,388.79 × 259,454,907.90
  4. Step 4: Simplify right side
    479,471,481.90x = 171,674,148,693,482,432
  5. Step 5: Solve for x
    x = 171,674,148,693,482,432/479,471,481.90
  6. Step 6: Final answer
    x = 358,048,716.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.