Finding the Fourth Proportional to 21,455,702.96, 29,609,240.18 and 11,666,213.26
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Solution
The fourth proportional to 21,455,702.96, 29,609,240.18 and 11,666,213.26 is: 16,099,575.53
Step by Step Solution
- Step 1: Write the proportion equation
21,455,702.96 : 29,609,240.18 = 11,666,213.26 : x - Step 2: Convert to fraction form
21,455,702.96/29,609,240.18 = 11,666,213.26/x - Step 3: Cross multiply
21,455,702.96x = 29,609,240.18 × 11,666,213.26 - Step 4: Simplify right side
21,455,702.96x = 345,427,710,274,086.62 - Step 5: Solve for x
x = 345,427,710,274,086.62/21,455,702.96 - Step 6: Final answer
x = 16,099,575.53
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1.5x scale
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.