Finding the Fourth Proportional to 129,011,198,779.80, 193,517,410,286.36 and 39,474,049,362.44
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Solution
The fourth proportional to 129,011,198,779.80, 193,517,410,286.36 and 39,474,049,362.44 is: 59,211,261,335.33
Step by Step Solution
- Step 1: Write the proportion equation
129,011,198,779.80 : 193,517,410,286.36 = 39,474,049,362.44 : x - Step 2: Convert to fraction form
129,011,198,779.80/193,517,410,286.36 = 39,474,049,362.44/x - Step 3: Cross multiply
129,011,198,779.80x = 193,517,410,286.36 × 39,474,049,362.44 - Step 4: Simplify right side
129,011,198,779.80x = 7,638,915,806,135,328,964,608 - Step 5: Solve for x
x = 7,638,915,806,135,328,964,608/129,011,198,779.80 - Step 6: Final answer
x = 59,211,261,335.33
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1.5x scale
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.