Finding the Fourth Proportional to 12,168,262.60, 18,251,207.70 and 3,192,814.60
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Solution
The fourth proportional to 12,168,262.60, 18,251,207.70 and 3,192,814.60 is: 4,788,910.65
Step by Step Solution
- Step 1: Write the proportion equation
12,168,262.60 : 18,251,207.70 = 3,192,814.60 : x - Step 2: Convert to fraction form
12,168,262.60/18,251,207.70 = 3,192,814.60/x - Step 3: Cross multiply
12,168,262.60x = 18,251,207.70 × 3,192,814.60 - Step 4: Simplify right side
12,168,262.60x = 58,272,722,412,192.42 - Step 5: Solve for x
x = 58,272,722,412,192.42/12,168,262.60 - Step 6: Final answer
x = 4,788,910.65
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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.