Home / 656,933,906.16-985,275,276.78-196,872,075.48

Finding the Fourth Proportional to 656,933,906.16, 985,275,276.78 and 196,872,075.48

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Solution

The fourth proportional to 656,933,906.16, 985,275,276.78 and 196,872,075.48 is: 295,270,478.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,933,906.16 : 985,275,276.78 = 196,872,075.48 : x
  2. Step 2: Convert to fraction form
    656,933,906.16/985,275,276.78 = 196,872,075.48/x
  3. Step 3: Cross multiply
    656,933,906.16x = 985,275,276.78 × 196,872,075.48
  4. Step 4: Simplify right side
    656,933,906.16x = 193,973,188,658,810,048
  5. Step 5: Solve for x
    x = 193,973,188,658,810,048/656,933,906.16
  6. Step 6: Final answer
    x = 295,270,478.26

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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.