Finding the Fourth Proportional to 18,116,135.40, 27,153,207.90 and 7,328,101.80
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Solution
The fourth proportional to 18,116,135.40, 27,153,207.90 and 7,328,101.80 is: 10,983,660.00
Step by Step Solution
- Step 1: Write the proportion equation
18,116,135.40 : 27,153,207.90 = 7,328,101.80 : x - Step 2: Convert to fraction form
18,116,135.40/27,153,207.90 = 7,328,101.80/x - Step 3: Cross multiply
18,116,135.40x = 27,153,207.90 × 7,328,101.80 - Step 4: Simplify right side
18,116,135.40x = 198,981,471,687,764.22 - Step 5: Solve for x
x = 198,981,471,687,764.22/18,116,135.40 - Step 6: Final answer
x = 10,983,660.00
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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.