Finding the Fourth Proportional to 8,783,118.97, 12,120,702.40 and 4,915,639.91
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Solution
The fourth proportional to 8,783,118.97, 12,120,702.40 and 4,915,639.91 is: 6,783,582.09
Step by Step Solution
- Step 1: Write the proportion equation
8,783,118.97 : 12,120,702.40 = 4,915,639.91 : x - Step 2: Convert to fraction form
8,783,118.97/12,120,702.40 = 4,915,639.91/x - Step 3: Cross multiply
8,783,118.97x = 12,120,702.40 × 4,915,639.91 - Step 4: Simplify right side
8,783,118.97x = 59,581,008,491,119.08 - Step 5: Solve for x
x = 59,581,008,491,119.08/8,783,118.97 - Step 6: Final answer
x = 6,783,582.09
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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.