Home / 1,275,452,738.40-1,913,179,107.60-1,166,613,621.60

Finding the Fourth Proportional to 1,275,452,738.40, 1,913,179,107.60 and 1,166,613,621.60

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Solution

The fourth proportional to 1,275,452,738.40, 1,913,179,107.60 and 1,166,613,621.60 is: 1,749,920,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,452,738.40 : 1,913,179,107.60 = 1,166,613,621.60 : x
  2. Step 2: Convert to fraction form
    1,275,452,738.40/1,913,179,107.60 = 1,166,613,621.60/x
  3. Step 3: Cross multiply
    1,275,452,738.40x = 1,913,179,107.60 × 1,166,613,621.60
  4. Step 4: Simplify right side
    1,275,452,738.40x = 2,231,940,807,486,691,840
  5. Step 5: Solve for x
    x = 2,231,940,807,486,691,840/1,275,452,738.40
  6. Step 6: Final answer
    x = 1,749,920,432.40

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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.