Finding the Fourth Proportional to 13,690,121.14, 18,892,589.97 and 7,495,063.30
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Solution
The fourth proportional to 13,690,121.14, 18,892,589.97 and 7,495,063.30 is: 10,343,309.33
Step by Step Solution
- Step 1: Write the proportion equation
13,690,121.14 : 18,892,589.97 = 7,495,063.30 : x - Step 2: Convert to fraction form
13,690,121.14/18,892,589.97 = 7,495,063.30/x - Step 3: Cross multiply
13,690,121.14x = 18,892,589.97 × 7,495,063.30 - Step 4: Simplify right side
13,690,121.14x = 141,601,157,726,095.09 - Step 5: Solve for x
x = 141,601,157,726,095.09/13,690,121.14 - Step 6: Final answer
x = 10,343,309.33
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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.