Finding the Fourth Proportional to 31,989,884.22, 44,148,408.78 and 18,239,194.62
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Solution
The fourth proportional to 31,989,884.22, 44,148,408.78 and 18,239,194.62 is: 25,171,439.02
Step by Step Solution
- Step 1: Write the proportion equation
31,989,884.22 : 44,148,408.78 = 18,239,194.62 : x - Step 2: Convert to fraction form
31,989,884.22/44,148,408.78 = 18,239,194.62/x - Step 3: Cross multiply
31,989,884.22x = 44,148,408.78 × 18,239,194.62 - Step 4: Simplify right side
31,989,884.22x = 805,231,419,901,736.88 - Step 5: Solve for x
x = 805,231,419,901,736.88/31,989,884.22 - Step 6: Final answer
x = 25,171,439.02
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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.