Finding the Fourth Proportional to 187,407,121.92, 258,620,025.60 and 107,993,006.88
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Solution
The fourth proportional to 187,407,121.92, 258,620,025.60 and 107,993,006.88 is: 149,029,310.72
Step by Step Solution
- Step 1: Write the proportion equation
187,407,121.92 : 258,620,025.60 = 107,993,006.88 : x - Step 2: Convert to fraction form
187,407,121.92/258,620,025.60 = 107,993,006.88/x - Step 3: Cross multiply
187,407,121.92x = 258,620,025.60 × 107,993,006.88 - Step 4: Simplify right side
187,407,121.92x = 27,929,154,203,926,576 - Step 5: Solve for x
x = 27,929,154,203,926,576/187,407,121.92 - Step 6: Final answer
x = 149,029,310.72
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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.