Finding the Fourth Proportional to 258,193,942.25, 387,290,676.74 and 80,932,358.44
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Solution
The fourth proportional to 258,193,942.25, 387,290,676.74 and 80,932,358.44 is: 121,398,463.48
Step by Step Solution
- Step 1: Write the proportion equation
258,193,942.25 : 387,290,676.74 = 80,932,358.44 : x - Step 2: Convert to fraction form
258,193,942.25/387,290,676.74 = 80,932,358.44/x - Step 3: Cross multiply
258,193,942.25x = 387,290,676.74 × 80,932,358.44 - Step 4: Simplify right side
258,193,942.25x = 31,344,347,868,657,728 - Step 5: Solve for x
x = 31,344,347,868,657,728/258,193,942.25 - Step 6: Final answer
x = 121,398,463.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.