Home / 890,479,108.53-1,228,862,615.43-494,002,108.35

Finding the Fourth Proportional to 890,479,108.53, 1,228,862,615.43 and 494,002,108.35

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Solution

The fourth proportional to 890,479,108.53, 1,228,862,615.43 and 494,002,108.35 is: 681,723,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,479,108.53 : 1,228,862,615.43 = 494,002,108.35 : x
  2. Step 2: Convert to fraction form
    890,479,108.53/1,228,862,615.43 = 494,002,108.35/x
  3. Step 3: Cross multiply
    890,479,108.53x = 1,228,862,615.43 × 494,002,108.35
  4. Step 4: Simplify right side
    890,479,108.53x = 607,060,722,894,915,328
  5. Step 5: Solve for x
    x = 607,060,722,894,915,328/890,479,108.53
  6. Step 6: Final answer
    x = 681,723,711.52

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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.