Finding the Fourth Proportional to 11,880,761.67, 16,393,578.28 and 6,920,019.41
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Solution
The fourth proportional to 11,880,761.67, 16,393,578.28 and 6,920,019.41 is: 9,548,535.95
Step by Step Solution
- Step 1: Write the proportion equation
11,880,761.67 : 16,393,578.28 = 6,920,019.41 : x - Step 2: Convert to fraction form
11,880,761.67/16,393,578.28 = 6,920,019.41/x - Step 3: Cross multiply
11,880,761.67x = 16,393,578.28 × 6,920,019.41 - Step 4: Simplify right side
11,880,761.67x = 113,443,879,896,954.41 - Step 5: Solve for x
x = 113,443,879,896,954.41/11,880,761.67 - Step 6: Final answer
x = 9,548,535.95
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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.