Home / 2,912,647,591.24-4,020,546,735.60-1,909,129,828.78

Finding the Fourth Proportional to 2,912,647,591.24, 4,020,546,735.60 and 1,909,129,828.78

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Solution

The fourth proportional to 2,912,647,591.24, 4,020,546,735.60 and 1,909,129,828.78 is: 2,635,315,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,647,591.24 : 4,020,546,735.60 = 1,909,129,828.78 : x
  2. Step 2: Convert to fraction form
    2,912,647,591.24/4,020,546,735.60 = 1,909,129,828.78/x
  3. Step 3: Cross multiply
    2,912,647,591.24x = 4,020,546,735.60 × 1,909,129,828.78
  4. Step 4: Simplify right side
    2,912,647,591.24x = 7,675,745,700,938,015,744
  5. Step 5: Solve for x
    x = 7,675,745,700,938,015,744/2,912,647,591.24
  6. Step 6: Final answer
    x = 2,635,315,622.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.