Finding the Fourth Proportional to 31,529,514.48, 43,513,743.96 and 19,770,655.92
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Solution
The fourth proportional to 31,529,514.48, 43,513,743.96 and 19,770,655.92 is: 27,285,395.09
Step by Step Solution
- Step 1: Write the proportion equation
31,529,514.48 : 43,513,743.96 = 19,770,655.92 : x - Step 2: Convert to fraction form
31,529,514.48/43,513,743.96 = 19,770,655.92/x - Step 3: Cross multiply
31,529,514.48x = 43,513,743.96 × 19,770,655.92 - Step 4: Simplify right side
31,529,514.48x = 860,295,259,624,138.38 - Step 5: Solve for x
x = 860,295,259,624,138.38/31,529,514.48 - Step 6: Final answer
x = 27,285,395.09
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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.