Finding the Fourth Proportional to 16,638,163.20, 24,957,244.80 and 7,680,211.20
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Solution
The fourth proportional to 16,638,163.20, 24,957,244.80 and 7,680,211.20 is: 11,520,316.80
Step by Step Solution
- Step 1: Write the proportion equation
16,638,163.20 : 24,957,244.80 = 7,680,211.20 : x - Step 2: Convert to fraction form
16,638,163.20/24,957,244.80 = 7,680,211.20/x - Step 3: Cross multiply
16,638,163.20x = 24,957,244.80 × 7,680,211.20 - Step 4: Simplify right side
16,638,163.20x = 191,676,911,034,101.78 - Step 5: Solve for x
x = 191,676,911,034,101.78/16,638,163.20 - Step 6: Final answer
x = 11,520,316.80
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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.