Home / 722,928,236.20-1,083,636,527.10-394,899,231.40

Finding the Fourth Proportional to 722,928,236.20, 1,083,636,527.10 and 394,899,231.40

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Solution

The fourth proportional to 722,928,236.20, 1,083,636,527.10 and 394,899,231.40 is: 591,935,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,928,236.20 : 1,083,636,527.10 = 394,899,231.40 : x
  2. Step 2: Convert to fraction form
    722,928,236.20/1,083,636,527.10 = 394,899,231.40/x
  3. Step 3: Cross multiply
    722,928,236.20x = 1,083,636,527.10 × 394,899,231.40
  4. Step 4: Simplify right side
    722,928,236.20x = 427,927,231,668,755,200
  5. Step 5: Solve for x
    x = 427,927,231,668,755,200/722,928,236.20
  6. Step 6: Final answer
    x = 591,935,976.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.