Home / 1,393,992,910.40-2,090,989,365.60-1,372,493,825.60

Finding the Fourth Proportional to 1,393,992,910.40, 2,090,989,365.60 and 1,372,493,825.60

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Solution

The fourth proportional to 1,393,992,910.40, 2,090,989,365.60 and 1,372,493,825.60 is: 2,058,740,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,992,910.40 : 2,090,989,365.60 = 1,372,493,825.60 : x
  2. Step 2: Convert to fraction form
    1,393,992,910.40/2,090,989,365.60 = 1,372,493,825.60/x
  3. Step 3: Cross multiply
    1,393,992,910.40x = 2,090,989,365.60 × 1,372,493,825.60
  4. Step 4: Simplify right side
    1,393,992,910.40x = 2,869,869,993,681,260,544
  5. Step 5: Solve for x
    x = 2,869,869,993,681,260,544/1,393,992,910.40
  6. Step 6: Final answer
    x = 2,058,740,738.40

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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.