Home / 494,221,615.17-681,856,900.43-282,376,444.77

Finding the Fourth Proportional to 494,221,615.17, 681,856,900.43 and 282,376,444.77

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Solution

The fourth proportional to 494,221,615.17, 681,856,900.43 and 282,376,444.77 is: 389,582,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,221,615.17 : 681,856,900.43 = 282,376,444.77 : x
  2. Step 2: Convert to fraction form
    494,221,615.17/681,856,900.43 = 282,376,444.77/x
  3. Step 3: Cross multiply
    494,221,615.17x = 681,856,900.43 × 282,376,444.77
  4. Step 4: Simplify right side
    494,221,615.17x = 192,540,327,383,903,360
  5. Step 5: Solve for x
    x = 192,540,327,383,903,360/494,221,615.17
  6. Step 6: Final answer
    x = 389,582,975.48

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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.