Finding the Fourth Proportional to 20,934,528.70, 31,369,742.56 and 14,085,734.08
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Solution
The fourth proportional to 20,934,528.70, 31,369,742.56 and 14,085,734.08 is: 21,107,036.05
Step by Step Solution
- Step 1: Write the proportion equation
20,934,528.70 : 31,369,742.56 = 14,085,734.08 : x - Step 2: Convert to fraction form
20,934,528.70/31,369,742.56 = 14,085,734.08/x - Step 3: Cross multiply
20,934,528.70x = 31,369,742.56 × 14,085,734.08 - Step 4: Simplify right side
20,934,528.70x = 441,865,851,858,218.44 - Step 5: Solve for x
x = 441,865,851,858,218.44/20,934,528.70 - Step 6: Final answer
x = 21,107,036.05
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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.