Finding the Fourth Proportional to 11,363,687.26, 15,677,245.95 and 8,390,516.12
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Solution
The fourth proportional to 11,363,687.26, 15,677,245.95 and 8,390,516.12 is: 11,575,484.42
Step by Step Solution
- Step 1: Write the proportion equation
11,363,687.26 : 15,677,245.95 = 8,390,516.12 : x - Step 2: Convert to fraction form
11,363,687.26/15,677,245.95 = 8,390,516.12/x - Step 3: Cross multiply
11,363,687.26x = 15,677,245.95 × 8,390,516.12 - Step 4: Simplify right side
11,363,687.26x = 131,540,184,860,679.69 - Step 5: Solve for x
x = 131,540,184,860,679.69/11,363,687.26 - Step 6: Final answer
x = 11,575,484.42
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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.