Finding the Fourth Proportional to 18,351,822.40, 27,489,890.40 and 10,755,764.80
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Solution
The fourth proportional to 18,351,822.40, 27,489,890.40 and 10,755,764.80 is: 16,111,467.79
Step by Step Solution
- Step 1: Write the proportion equation
18,351,822.40 : 27,489,890.40 = 10,755,764.80 : x - Step 2: Convert to fraction form
18,351,822.40/27,489,890.40 = 10,755,764.80/x - Step 3: Cross multiply
18,351,822.40x = 27,489,890.40 × 10,755,764.80 - Step 4: Simplify right side
18,351,822.40x = 295,674,795,520,177.94 - Step 5: Solve for x
x = 295,674,795,520,177.94/18,351,822.40 - Step 6: Final answer
x = 16,111,467.79
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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.