Home / 664,305,861.90-996,458,792.85-492,118,977.90

Finding the Fourth Proportional to 664,305,861.90, 996,458,792.85 and 492,118,977.90

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Solution

The fourth proportional to 664,305,861.90, 996,458,792.85 and 492,118,977.90 is: 738,178,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,305,861.90 : 996,458,792.85 = 492,118,977.90 : x
  2. Step 2: Convert to fraction form
    664,305,861.90/996,458,792.85 = 492,118,977.90/x
  3. Step 3: Cross multiply
    664,305,861.90x = 996,458,792.85 × 492,118,977.90
  4. Step 4: Simplify right side
    664,305,861.90x = 490,376,282,656,809,792
  5. Step 5: Solve for x
    x = 490,376,282,656,809,792/664,305,861.90
  6. Step 6: Final answer
    x = 738,178,466.85

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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.