Home / 647,007,464.75-892,910,314.40-356,994,119.78

Finding the Fourth Proportional to 647,007,464.75, 892,910,314.40 and 356,994,119.78

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Solution

The fourth proportional to 647,007,464.75, 892,910,314.40 and 356,994,119.78 is: 492,673,962.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,007,464.75 : 892,910,314.40 = 356,994,119.78 : x
  2. Step 2: Convert to fraction form
    647,007,464.75/892,910,314.40 = 356,994,119.78/x
  3. Step 3: Cross multiply
    647,007,464.75x = 892,910,314.40 × 356,994,119.78
  4. Step 4: Simplify right side
    647,007,464.75x = 318,763,731,728,809,920
  5. Step 5: Solve for x
    x = 318,763,731,728,809,920/647,007,464.75
  6. Step 6: Final answer
    x = 492,673,962.97

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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.