Home / 890,479,102.79-1,228,862,607.49-494,002,102.61

Finding the Fourth Proportional to 890,479,102.79, 1,228,862,607.49 and 494,002,102.61

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Solution

The fourth proportional to 890,479,102.79, 1,228,862,607.49 and 494,002,102.61 is: 681,723,703.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,479,102.79 : 1,228,862,607.49 = 494,002,102.61 : x
  2. Step 2: Convert to fraction form
    890,479,102.79/1,228,862,607.49 = 494,002,102.61/x
  3. Step 3: Cross multiply
    890,479,102.79x = 1,228,862,607.49 × 494,002,102.61
  4. Step 4: Simplify right side
    890,479,102.79x = 607,060,711,914,560,000
  5. Step 5: Solve for x
    x = 607,060,711,914,560,000/890,479,102.79
  6. Step 6: Final answer
    x = 681,723,703.58

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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.