Finding the Fourth Proportional to 290,207,546.26, 434,880,851.83 and 213,153,915.67
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Solution
The fourth proportional to 290,207,546.26, 434,880,851.83 and 213,153,915.67 is: 319,414,700.31
Step by Step Solution
- Step 1: Write the proportion equation
290,207,546.26 : 434,880,851.83 = 213,153,915.67 : x - Step 2: Convert to fraction form
290,207,546.26/434,880,851.83 = 213,153,915.67/x - Step 3: Cross multiply
290,207,546.26x = 434,880,851.83 × 213,153,915.67 - Step 4: Simplify right side
290,207,546.26x = 92,696,556,415,849,488 - Step 5: Solve for x
x = 92,696,556,415,849,488/290,207,546.26 - Step 6: Final answer
x = 319,414,700.31
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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.