Home / 890,970,644.80-1,229,520,995.04-494,470,606.60

Finding the Fourth Proportional to 890,970,644.80, 1,229,520,995.04 and 494,470,606.60

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Solution

The fourth proportional to 890,970,644.80, 1,229,520,995.04 and 494,470,606.60 is: 682,359,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,970,644.80 : 1,229,520,995.04 = 494,470,606.60 : x
  2. Step 2: Convert to fraction form
    890,970,644.80/1,229,520,995.04 = 494,470,606.60/x
  3. Step 3: Cross multiply
    890,970,644.80x = 1,229,520,995.04 × 494,470,606.60
  4. Step 4: Simplify right side
    890,970,644.80x = 607,961,992,244,864,384
  5. Step 5: Solve for x
    x = 607,961,992,244,864,384/890,970,644.80
  6. Step 6: Final answer
    x = 682,359,172.88

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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.