Home / 851,582,612.72-1,175,177,160.72-494,383,533.68

Finding the Fourth Proportional to 851,582,612.72, 1,175,177,160.72 and 494,383,533.68

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Solution

The fourth proportional to 851,582,612.72, 1,175,177,160.72 and 494,383,533.68 is: 682,245,302.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,582,612.72 : 1,175,177,160.72 = 494,383,533.68 : x
  2. Step 2: Convert to fraction form
    851,582,612.72/1,175,177,160.72 = 494,383,533.68/x
  3. Step 3: Cross multiply
    851,582,612.72x = 1,175,177,160.72 × 494,383,533.68
  4. Step 4: Simplify right side
    851,582,612.72x = 580,988,237,416,782,976
  5. Step 5: Solve for x
    x = 580,988,237,416,782,976/851,582,612.72
  6. Step 6: Final answer
    x = 682,245,302.73

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1.5x scale

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.