Finding the Fourth Proportional to 8,886,245.40, 13,329,368.10 and 8,193,403.80
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Solution
The fourth proportional to 8,886,245.40, 13,329,368.10 and 8,193,403.80 is: 12,290,105.70
Step by Step Solution
- Step 1: Write the proportion equation
8,886,245.40 : 13,329,368.10 = 8,193,403.80 : x - Step 2: Convert to fraction form
8,886,245.40/13,329,368.10 = 8,193,403.80/x - Step 3: Cross multiply
8,886,245.40x = 13,329,368.10 × 8,193,403.80 - Step 4: Simplify right side
8,886,245.40x = 109,212,895,242,138.78 - Step 5: Solve for x
x = 109,212,895,242,138.78/8,886,245.40 - Step 6: Final answer
x = 12,290,105.70
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.