Finding the Fourth Proportional to 11,202,655.80, 16,766,658.90 and 10,306,860.60
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Solution
The fourth proportional to 11,202,655.80, 16,766,658.90 and 10,306,860.60 is: 15,425,950.69
Step by Step Solution
- Step 1: Write the proportion equation
11,202,655.80 : 16,766,658.90 = 10,306,860.60 : x - Step 2: Convert to fraction form
11,202,655.80/16,766,658.90 = 10,306,860.60/x - Step 3: Cross multiply
11,202,655.80x = 16,766,658.90 × 10,306,860.60 - Step 4: Simplify right side
11,202,655.80x = 172,811,616,010,049.34 - Step 5: Solve for x
x = 172,811,616,010,049.34/11,202,655.80 - Step 6: Final answer
x = 15,425,950.69
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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.