Finding the Fourth Proportional to 8,877,883.41, 12,250,165.55 and 5,391,409.05
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Solution
The fourth proportional to 8,877,883.41, 12,250,165.55 and 5,391,409.05 is: 7,439,346.78
Step by Step Solution
- Step 1: Write the proportion equation
8,877,883.41 : 12,250,165.55 = 5,391,409.05 : x - Step 2: Convert to fraction form
8,877,883.41/12,250,165.55 = 5,391,409.05/x - Step 3: Cross multiply
8,877,883.41x = 12,250,165.55 × 5,391,409.05 - Step 4: Simplify right side
8,877,883.41x = 66,045,653,383,311.18 - Step 5: Solve for x
x = 66,045,653,383,311.18/8,877,883.41 - Step 6: Final answer
x = 7,439,346.78
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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.