Finding the Fourth Proportional to 18,182,968.43, 27,274,449.87 and 12,129,521.99
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Solution
The fourth proportional to 18,182,968.43, 27,274,449.87 and 12,129,521.99 is: 18,194,281.13
Step by Step Solution
- Step 1: Write the proportion equation
18,182,968.43 : 27,274,449.87 = 12,129,521.99 : x - Step 2: Convert to fraction form
18,182,968.43/27,274,449.87 = 12,129,521.99/x - Step 3: Cross multiply
18,182,968.43x = 27,274,449.87 × 12,129,521.99 - Step 4: Simplify right side
18,182,968.43x = 330,826,039,326,945.38 - Step 5: Solve for x
x = 330,826,039,326,945.38/18,182,968.43 - Step 6: Final answer
x = 18,194,281.13
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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.