Finding the Fourth Proportional to 8,611,343.62, 11,895,741.21 and 8,157,847.30
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Solution
The fourth proportional to 8,611,343.62, 11,895,741.21 and 8,157,847.30 is: 11,269,279.75
Step by Step Solution
- Step 1: Write the proportion equation
8,611,343.62 : 11,895,741.21 = 8,157,847.30 : x - Step 2: Convert to fraction form
8,611,343.62/11,895,741.21 = 8,157,847.30/x - Step 3: Cross multiply
8,611,343.62x = 11,895,741.21 × 8,157,847.30 - Step 4: Simplify right side
8,611,343.62x = 97,043,640,311,497.23 - Step 5: Solve for x
x = 97,043,640,311,497.23/8,611,343.62 - Step 6: Final answer
x = 11,269,279.75
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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.