Finding the Fourth Proportional to 20,529,296.18, 28,331,743.84 and 11,827,310.66
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Solution
The fourth proportional to 20,529,296.18, 28,331,743.84 and 11,827,310.66 is: 16,322,446.37
Step by Step Solution
- Step 1: Write the proportion equation
20,529,296.18 : 28,331,743.84 = 11,827,310.66 : x - Step 2: Convert to fraction form
20,529,296.18/28,331,743.84 = 11,827,310.66/x - Step 3: Cross multiply
20,529,296.18x = 28,331,743.84 × 11,827,310.66 - Step 4: Simplify right side
20,529,296.18x = 335,088,335,763,994.31 - Step 5: Solve for x
x = 335,088,335,763,994.31/20,529,296.18 - Step 6: Final answer
x = 16,322,446.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.