Home / 451,973,620.38-678,168,934.29-206,405,534.82

Finding the Fourth Proportional to 451,973,620.38, 678,168,934.29 and 206,405,534.82

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Solution

The fourth proportional to 451,973,620.38, 678,168,934.29 and 206,405,534.82 is: 309,703,520.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,973,620.38 : 678,168,934.29 = 206,405,534.82 : x
  2. Step 2: Convert to fraction form
    451,973,620.38/678,168,934.29 = 206,405,534.82/x
  3. Step 3: Cross multiply
    451,973,620.38x = 678,168,934.29 × 206,405,534.82
  4. Step 4: Simplify right side
    451,973,620.38x = 139,977,821,580,436,880
  5. Step 5: Solve for x
    x = 139,977,821,580,436,880/451,973,620.38
  6. Step 6: Final answer
    x = 309,703,520.89

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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.