Home / 839,812,012.80-1,259,718,019.20-576,784,147.20

Finding the Fourth Proportional to 839,812,012.80, 1,259,718,019.20 and 576,784,147.20

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Solution

The fourth proportional to 839,812,012.80, 1,259,718,019.20 and 576,784,147.20 is: 865,176,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,812,012.80 : 1,259,718,019.20 = 576,784,147.20 : x
  2. Step 2: Convert to fraction form
    839,812,012.80/1,259,718,019.20 = 576,784,147.20/x
  3. Step 3: Cross multiply
    839,812,012.80x = 1,259,718,019.20 × 576,784,147.20
  4. Step 4: Simplify right side
    839,812,012.80x = 726,585,383,416,745,344
  5. Step 5: Solve for x
    x = 726,585,383,416,745,344/839,812,012.80
  6. Step 6: Final answer
    x = 865,176,220.80

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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.