Home / 1,189,728,783.77-1,784,895,900.20-698,857,202.39

Finding the Fourth Proportional to 1,189,728,783.77, 1,784,895,900.20 and 698,857,202.39

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Solution

The fourth proportional to 1,189,728,783.77, 1,784,895,900.20 and 698,857,202.39 is: 1,048,463,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,728,783.77 : 1,784,895,900.20 = 698,857,202.39 : x
  2. Step 2: Convert to fraction form
    1,189,728,783.77/1,784,895,900.20 = 698,857,202.39/x
  3. Step 3: Cross multiply
    1,189,728,783.77x = 1,784,895,900.20 × 698,857,202.39
  4. Step 4: Simplify right side
    1,189,728,783.77x = 1,247,387,355,367,658,240
  5. Step 5: Solve for x
    x = 1,247,387,355,367,658,240/1,189,728,783.77
  6. Step 6: Final answer
    x = 1,048,463,626.66

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Double scale
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1.5x scale

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.