Finding the Fourth Proportional to 18,129,898.20, 27,194,847.30 and 14,020,087.80
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Solution
The fourth proportional to 18,129,898.20, 27,194,847.30 and 14,020,087.80 is: 21,030,131.70
Step by Step Solution
- Step 1: Write the proportion equation
18,129,898.20 : 27,194,847.30 = 14,020,087.80 : x - Step 2: Convert to fraction form
18,129,898.20/27,194,847.30 = 14,020,087.80/x - Step 3: Cross multiply
18,129,898.20x = 27,194,847.30 × 14,020,087.80 - Step 4: Simplify right side
18,129,898.20x = 381,274,146,853,593 - Step 5: Solve for x
x = 381,274,146,853,593/18,129,898.20 - Step 6: Final answer
x = 21,030,131.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.