Finding the Fourth Proportional to 18,397,231.20, 27,572,227.20 and 14,116,178.70
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Solution
The fourth proportional to 18,397,231.20, 27,572,227.20 and 14,116,178.70 is: 21,156,144.75
Step by Step Solution
- Step 1: Write the proportion equation
18,397,231.20 : 27,572,227.20 = 14,116,178.70 : x - Step 2: Convert to fraction form
18,397,231.20/27,572,227.20 = 14,116,178.70/x - Step 3: Cross multiply
18,397,231.20x = 27,572,227.20 × 14,116,178.70 - Step 4: Simplify right side
18,397,231.20x = 389,214,486,312,200.62 - Step 5: Solve for x
x = 389,214,486,312,200.62/18,397,231.20 - Step 6: Final answer
x = 21,156,144.75
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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.