Finding the Fourth Proportional to 258,965,680.96, 388,480,845.57 and 101,378,340.82
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Solution
The fourth proportional to 258,965,680.96, 388,480,845.57 and 101,378,340.82 is: 152,080,165.29
Step by Step Solution
- Step 1: Write the proportion equation
258,965,680.96 : 388,480,845.57 = 101,378,340.82 : x - Step 2: Convert to fraction form
258,965,680.96/388,480,845.57 = 101,378,340.82/x - Step 3: Cross multiply
258,965,680.96x = 388,480,845.57 × 101,378,340.82 - Step 4: Simplify right side
258,965,680.96x = 39,383,543,564,237,240 - Step 5: Solve for x
x = 39,383,543,564,237,240/258,965,680.96 - Step 6: Final answer
x = 152,080,165.29
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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.