Finding the Fourth Proportional to 12,375,311.70, 18,590,961.15 and 8,596,175.70
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Solution
The fourth proportional to 12,375,311.70, 18,590,961.15 and 8,596,175.70 is: 12,913,708.55
Step by Step Solution
- Step 1: Write the proportion equation
12,375,311.70 : 18,590,961.15 = 8,596,175.70 : x - Step 2: Convert to fraction form
12,375,311.70/18,590,961.15 = 8,596,175.70/x - Step 3: Cross multiply
12,375,311.70x = 18,590,961.15 × 8,596,175.70 - Step 4: Simplify right side
12,375,311.70x = 159,811,168,477,274.03 - Step 5: Solve for x
x = 159,811,168,477,274.03/12,375,311.70 - Step 6: Final answer
x = 12,913,708.55
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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.