Home / 2,912,647,533.92-4,020,546,656.55-1,909,129,771.64

Finding the Fourth Proportional to 2,912,647,533.92, 4,020,546,656.55 and 1,909,129,771.64

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Solution

The fourth proportional to 2,912,647,533.92, 4,020,546,656.55 and 1,909,129,771.64 is: 2,635,315,543.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,647,533.92 : 4,020,546,656.55 = 1,909,129,771.64 : x
  2. Step 2: Convert to fraction form
    2,912,647,533.92/4,020,546,656.55 = 1,909,129,771.64/x
  3. Step 3: Cross multiply
    2,912,647,533.92x = 4,020,546,656.55 × 1,909,129,771.64
  4. Step 4: Simplify right side
    2,912,647,533.92x = 7,675,745,320,297,318,400
  5. Step 5: Solve for x
    x = 7,675,745,320,297,318,400/2,912,647,533.92
  6. Step 6: Final answer
    x = 2,635,315,543.99

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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.