Home / 839,812,266.80-1,259,718,400.20-355,138,074.80

Finding the Fourth Proportional to 839,812,266.80, 1,259,718,400.20 and 355,138,074.80

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Solution

The fourth proportional to 839,812,266.80, 1,259,718,400.20 and 355,138,074.80 is: 532,707,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,812,266.80 : 1,259,718,400.20 = 355,138,074.80 : x
  2. Step 2: Convert to fraction form
    839,812,266.80/1,259,718,400.20 = 355,138,074.80/x
  3. Step 3: Cross multiply
    839,812,266.80x = 1,259,718,400.20 × 355,138,074.80
  4. Step 4: Simplify right side
    839,812,266.80x = 447,373,967,437,163,968
  5. Step 5: Solve for x
    x = 447,373,967,437,163,968/839,812,266.80
  6. Step 6: Final answer
    x = 532,707,112.20

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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.