Finding the Fourth Proportional to 358,737,175.42, 538,105,769.64 and 86,107,942.42
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Solution
The fourth proportional to 358,737,175.42, 538,105,769.64 and 86,107,942.42 is: 129,161,915.19
Step by Step Solution
- Step 1: Write the proportion equation
358,737,175.42 : 538,105,769.64 = 86,107,942.42 : x - Step 2: Convert to fraction form
358,737,175.42/538,105,769.64 = 86,107,942.42/x - Step 3: Cross multiply
358,737,175.42x = 538,105,769.64 × 86,107,942.42 - Step 4: Simplify right side
358,737,175.42x = 46,335,180,626,685,640 - Step 5: Solve for x
x = 46,335,180,626,685,640/358,737,175.42 - Step 6: Final answer
x = 129,161,915.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.