Finding the Fourth Proportional to 203,514,599.92, 280,824,639.96 and 137,578,560.88
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Solution
The fourth proportional to 203,514,599.92, 280,824,639.96 and 137,578,560.88 is: 189,841,170.32
Step by Step Solution
- Step 1: Write the proportion equation
203,514,599.92 : 280,824,639.96 = 137,578,560.88 : x - Step 2: Convert to fraction form
203,514,599.92/280,824,639.96 = 137,578,560.88/x - Step 3: Cross multiply
203,514,599.92x = 280,824,639.96 × 137,578,560.88 - Step 4: Simplify right side
203,514,599.92x = 38,635,449,825,340,936 - Step 5: Solve for x
x = 38,635,449,825,340,936/203,514,599.92 - Step 6: Final answer
x = 189,841,170.32
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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.