Home / 449,405,323,601.35-620,246,496,218.45-353,780,987,817.40

Finding the Fourth Proportional to 449,405,323,601.35, 620,246,496,218.45 and 353,780,987,817.40

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Solution

The fourth proportional to 449,405,323,601.35, 620,246,496,218.45 and 353,780,987,817.40 is: 488,270,624,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,405,323,601.35 : 620,246,496,218.45 = 353,780,987,817.40 : x
  2. Step 2: Convert to fraction form
    449,405,323,601.35/620,246,496,218.45 = 353,780,987,817.40/x
  3. Step 3: Cross multiply
    449,405,323,601.35x = 620,246,496,218.45 × 353,780,987,817.40
  4. Step 4: Simplify right side
    449,405,323,601.35x = 219,431,418,122,444,478,611,456
  5. Step 5: Solve for x
    x = 219,431,418,122,444,478,611,456/449,405,323,601.35
  6. Step 6: Final answer
    x = 488,270,624,753.64

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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.