Finding the Fourth Proportional to 20,213,652.43, 27,894,840.42 and 11,512,634.68
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Solution
The fourth proportional to 20,213,652.43, 27,894,840.42 and 11,512,634.68 is: 15,887,435.90
Step by Step Solution
- Step 1: Write the proportion equation
20,213,652.43 : 27,894,840.42 = 11,512,634.68 : x - Step 2: Convert to fraction form
20,213,652.43/27,894,840.42 = 11,512,634.68/x - Step 3: Cross multiply
20,213,652.43x = 27,894,840.42 × 11,512,634.68 - Step 4: Simplify right side
20,213,652.43x = 321,143,107,212,357.75 - Step 5: Solve for x
x = 321,143,107,212,357.75/20,213,652.43 - Step 6: Final answer
x = 15,887,435.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.