Home / 647,255,900,517.40-970,230,816,075.30-294,181,805,618.20

Finding the Fourth Proportional to 647,255,900,517.40, 970,230,816,075.30 and 294,181,805,618.20

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Solution

The fourth proportional to 647,255,900,517.40, 970,230,816,075.30 and 294,181,805,618.20 is: 440,975,900,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,255,900,517.40 : 970,230,816,075.30 = 294,181,805,618.20 : x
  2. Step 2: Convert to fraction form
    647,255,900,517.40/970,230,816,075.30 = 294,181,805,618.20/x
  3. Step 3: Cross multiply
    647,255,900,517.40x = 970,230,816,075.30 × 294,181,805,618.20
  4. Step 4: Simplify right side
    647,255,900,517.40x = 285,424,253,339,451,500,003,328
  5. Step 5: Solve for x
    x = 285,424,253,339,451,500,003,328/647,255,900,517.40
  6. Step 6: Final answer
    x = 440,975,900,121.25

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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.