Finding the Fourth Proportional to 12,136,720.20, 18,207,738.72 and 4,563,685.95
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Solution
The fourth proportional to 12,136,720.20, 18,207,738.72 and 4,563,685.95 is: 6,846,528.55
Step by Step Solution
- Step 1: Write the proportion equation
12,136,720.20 : 18,207,738.72 = 4,563,685.95 : x - Step 2: Convert to fraction form
12,136,720.20/18,207,738.72 = 4,563,685.95/x - Step 3: Cross multiply
12,136,720.20x = 18,207,738.72 × 4,563,685.95 - Step 4: Simplify right side
12,136,720.20x = 83,094,401,377,734.98 - Step 5: Solve for x
x = 83,094,401,377,734.98/12,136,720.20 - Step 6: Final answer
x = 6,846,528.55
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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.