Finding the Fourth Proportional to 14,508,414.53, 20,021,611.39 and 7,981,903.97
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Solution
The fourth proportional to 14,508,414.53, 20,021,611.39 and 7,981,903.97 is: 11,015,027.12
Step by Step Solution
- Step 1: Write the proportion equation
14,508,414.53 : 20,021,611.39 = 7,981,903.97 : x - Step 2: Convert to fraction form
14,508,414.53/20,021,611.39 = 7,981,903.97/x - Step 3: Cross multiply
14,508,414.53x = 20,021,611.39 × 7,981,903.97 - Step 4: Simplify right side
14,508,414.53x = 159,810,579,507,278 - Step 5: Solve for x
x = 159,810,579,507,278/14,508,414.53 - Step 6: Final answer
x = 11,015,027.12
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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.