Home / 717,504,370.20-990,156,022.92-387,479,509.20

Finding the Fourth Proportional to 717,504,370.20, 990,156,022.92 and 387,479,509.20

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Solution

The fourth proportional to 717,504,370.20, 990,156,022.92 and 387,479,509.20 is: 534,721,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,504,370.20 : 990,156,022.92 = 387,479,509.20 : x
  2. Step 2: Convert to fraction form
    717,504,370.20/990,156,022.92 = 387,479,509.20/x
  3. Step 3: Cross multiply
    717,504,370.20x = 990,156,022.92 × 387,479,509.20
  4. Step 4: Simplify right side
    717,504,370.20x = 383,665,169,792,465,536
  5. Step 5: Solve for x
    x = 383,665,169,792,465,536/717,504,370.20
  6. Step 6: Final answer
    x = 534,721,718.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.