Finding the Fourth Proportional to 8,076,378.24, 11,145,436.88 and 4,405,373.74
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Solution
The fourth proportional to 8,076,378.24, 11,145,436.88 and 4,405,373.74 is: 6,079,434.80
Step by Step Solution
- Step 1: Write the proportion equation
8,076,378.24 : 11,145,436.88 = 4,405,373.74 : x - Step 2: Convert to fraction form
8,076,378.24/11,145,436.88 = 4,405,373.74/x - Step 3: Cross multiply
8,076,378.24x = 11,145,436.88 × 4,405,373.74 - Step 4: Simplify right side
8,076,378.24x = 49,099,814,951,979.54 - Step 5: Solve for x
x = 49,099,814,951,979.54/8,076,378.24 - Step 6: Final answer
x = 6,079,434.80
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1.5x scale
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.