Finding the Fourth Proportional to 129,201,790.68, 193,844,676.36 and 86,245,611.48
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Solution
The fourth proportional to 129,201,790.68, 193,844,676.36 and 86,245,611.48 is: 129,396,446.88
Step by Step Solution
- Step 1: Write the proportion equation
129,201,790.68 : 193,844,676.36 = 86,245,611.48 : x - Step 2: Convert to fraction form
129,201,790.68/193,844,676.36 = 86,245,611.48/x - Step 3: Cross multiply
129,201,790.68x = 193,844,676.36 × 86,245,611.48 - Step 4: Simplify right side
129,201,790.68x = 16,718,252,644,810,902 - Step 5: Solve for x
x = 16,718,252,644,810,902/129,201,790.68 - Step 6: Final answer
x = 129,396,446.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.