Home / 1,427,275,516.92-1,969,480,462.79-792,222,778.88

Finding the Fourth Proportional to 1,427,275,516.92, 1,969,480,462.79 and 792,222,778.88

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Solution

The fourth proportional to 1,427,275,516.92, 1,969,480,462.79 and 792,222,778.88 is: 1,093,178,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,275,516.92 : 1,969,480,462.79 = 792,222,778.88 : x
  2. Step 2: Convert to fraction form
    1,427,275,516.92/1,969,480,462.79 = 792,222,778.88/x
  3. Step 3: Cross multiply
    1,427,275,516.92x = 1,969,480,462.79 × 792,222,778.88
  4. Step 4: Simplify right side
    1,427,275,516.92x = 1,560,267,285,181,362,176
  5. Step 5: Solve for x
    x = 1,560,267,285,181,362,176/1,427,275,516.92
  6. Step 6: Final answer
    x = 1,093,178,763.79

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Half scale
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Double scale
Find fourth proportional to 1,427,275,517.92, 1,969,480,464.17 and 792,222,779.88
Similar ratio
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1.5x scale

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.