Finding the Fourth Proportional to 8,136,986.85, 12,205,480.17 and 6,341,213.82
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Solution
The fourth proportional to 8,136,986.85, 12,205,480.17 and 6,341,213.82 is: 9,511,820.65
Step by Step Solution
- Step 1: Write the proportion equation
8,136,986.85 : 12,205,480.17 = 6,341,213.82 : x - Step 2: Convert to fraction form
8,136,986.85/12,205,480.17 = 6,341,213.82/x - Step 3: Cross multiply
8,136,986.85x = 12,205,480.17 × 6,341,213.82 - Step 4: Simplify right side
8,136,986.85x = 77,397,559,533,739.95 - Step 5: Solve for x
x = 77,397,559,533,739.95/8,136,986.85 - Step 6: Final answer
x = 9,511,820.65
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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.