Finding the Fourth Proportional to 203,431,753.92, 280,739,329.60 and 110,612,888.96
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Solution
The fourth proportional to 203,431,753.92, 280,739,329.60 and 110,612,888.96 is: 152,647,694.83
Step by Step Solution
- Step 1: Write the proportion equation
203,431,753.92 : 280,739,329.60 = 110,612,888.96 : x - Step 2: Convert to fraction form
203,431,753.92/280,739,329.60 = 110,612,888.96/x - Step 3: Cross multiply
203,431,753.92x = 280,739,329.60 × 110,612,888.96 - Step 4: Simplify right side
203,431,753.92x = 31,053,388,291,749,644 - Step 5: Solve for x
x = 31,053,388,291,749,644/203,431,753.92 - Step 6: Final answer
x = 152,647,694.83
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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.