Home / 666,136,245.18-919,364,174.04-383,824,616.70

Finding the Fourth Proportional to 666,136,245.18, 919,364,174.04 and 383,824,616.70

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Solution

The fourth proportional to 666,136,245.18, 919,364,174.04 and 383,824,616.70 is: 529,733,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,136,245.18 : 919,364,174.04 = 383,824,616.70 : x
  2. Step 2: Convert to fraction form
    666,136,245.18/919,364,174.04 = 383,824,616.70/x
  3. Step 3: Cross multiply
    666,136,245.18x = 919,364,174.04 × 383,824,616.70
  4. Step 4: Simplify right side
    666,136,245.18x = 352,874,601,708,615,040
  5. Step 5: Solve for x
    x = 352,874,601,708,615,040/666,136,245.18
  6. Step 6: Final answer
    x = 529,733,375.51

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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.