Finding the Fourth Proportional to 21,397,163.77, 29,528,086.00 and 12,230,003.35
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Solution
The fourth proportional to 21,397,163.77, 29,528,086.00 and 12,230,003.35 is: 16,877,404.62
Step by Step Solution
- Step 1: Write the proportion equation
21,397,163.77 : 29,528,086.00 = 12,230,003.35 : x - Step 2: Convert to fraction form
21,397,163.77/29,528,086.00 = 12,230,003.35/x - Step 3: Cross multiply
21,397,163.77x = 29,528,086.00 × 12,230,003.35 - Step 4: Simplify right side
21,397,163.77x = 361,128,590,527,856 - Step 5: Solve for x
x = 361,128,590,527,856/21,397,163.77 - Step 6: Final answer
x = 16,877,404.62
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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.