Home / 1,279,152,180.30-1,918,728,270.45-1,258,744,845.90

Finding the Fourth Proportional to 1,279,152,180.30, 1,918,728,270.45 and 1,258,744,845.90

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Solution

The fourth proportional to 1,279,152,180.30, 1,918,728,270.45 and 1,258,744,845.90 is: 1,888,117,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,152,180.30 : 1,918,728,270.45 = 1,258,744,845.90 : x
  2. Step 2: Convert to fraction form
    1,279,152,180.30/1,918,728,270.45 = 1,258,744,845.90/x
  3. Step 3: Cross multiply
    1,279,152,180.30x = 1,918,728,270.45 × 1,258,744,845.90
  4. Step 4: Simplify right side
    1,279,152,180.30x = 2,415,189,321,111,559,168
  5. Step 5: Solve for x
    x = 2,415,189,321,111,559,168/1,279,152,180.30
  6. Step 6: Final answer
    x = 1,888,117,268.85

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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.