Finding the Fourth Proportional to 81,093,202.02, 121,638,514.56 and 19,682,868.96
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Solution
The fourth proportional to 81,093,202.02, 121,638,514.56 and 19,682,868.96 is: 29,523,990.70
Step by Step Solution
- Step 1: Write the proportion equation
81,093,202.02 : 121,638,514.56 = 19,682,868.96 : x - Step 2: Convert to fraction form
81,093,202.02/121,638,514.56 = 19,682,868.96/x - Step 3: Cross multiply
81,093,202.02x = 121,638,514.56 × 19,682,868.96 - Step 4: Simplify right side
81,093,202.02x = 2,394,194,942,573,532 - Step 5: Solve for x
x = 2,394,194,942,573,532/81,093,202.02 - Step 6: Final answer
x = 29,523,990.70
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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.