Finding the Fourth Proportional to 13,590,717.36, 18,755,192.70 and 7,479,145.86
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Solution
The fourth proportional to 13,590,717.36, 18,755,192.70 and 7,479,145.86 is: 10,321,222.80
Step by Step Solution
- Step 1: Write the proportion equation
13,590,717.36 : 18,755,192.70 = 7,479,145.86 : x - Step 2: Convert to fraction form
13,590,717.36/18,755,192.70 = 7,479,145.86/x - Step 3: Cross multiply
13,590,717.36x = 18,755,192.70 × 7,479,145.86 - Step 4: Simplify right side
13,590,717.36x = 140,272,821,835,707.22 - Step 5: Solve for x
x = 140,272,821,835,707.22/13,590,717.36 - Step 6: Final answer
x = 10,321,222.80
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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.