Finding the Fourth Proportional to 11,122,511.40, 16,651,107.90 and 8,295,157.80
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Solution
The fourth proportional to 11,122,511.40, 16,651,107.90 and 8,295,157.80 is: 12,418,379.50
Step by Step Solution
- Step 1: Write the proportion equation
11,122,511.40 : 16,651,107.90 = 8,295,157.80 : x - Step 2: Convert to fraction form
11,122,511.40/16,651,107.90 = 8,295,157.80/x - Step 3: Cross multiply
11,122,511.40x = 16,651,107.90 × 8,295,157.80 - Step 4: Simplify right side
11,122,511.40x = 138,123,567,575,326.62 - Step 5: Solve for x
x = 138,123,567,575,326.62/11,122,511.40 - Step 6: Final answer
x = 12,418,379.50
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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.