Finding the Fourth Proportional to 8,109,204.97, 11,131,093.19 and 7,170,875.05
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Solution
The fourth proportional to 8,109,204.97, 11,131,093.19 and 7,170,875.05 is: 9,843,095.43
Step by Step Solution
- Step 1: Write the proportion equation
8,109,204.97 : 11,131,093.19 = 7,170,875.05 : x - Step 2: Convert to fraction form
8,109,204.97/11,131,093.19 = 7,170,875.05/x - Step 3: Cross multiply
8,109,204.97x = 11,131,093.19 × 7,170,875.05 - Step 4: Simplify right side
8,109,204.97x = 79,819,678,385,159.20 - Step 5: Solve for x
x = 79,819,678,385,159.20/8,109,204.97 - Step 6: Final answer
x = 9,843,095.43
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.