Finding the Fourth Proportional to 8,255,614.87, 12,381,982.85 and 2,190,959.75
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Solution
The fourth proportional to 8,255,614.87, 12,381,982.85 and 2,190,959.75 is: 3,286,057.61
Step by Step Solution
- Step 1: Write the proportion equation
8,255,614.87 : 12,381,982.85 = 2,190,959.75 : x - Step 2: Convert to fraction form
8,255,614.87/12,381,982.85 = 2,190,959.75/x - Step 3: Cross multiply
8,255,614.87x = 12,381,982.85 × 2,190,959.75 - Step 4: Simplify right side
8,255,614.87x = 27,128,426,085,972.64 - Step 5: Solve for x
x = 27,128,426,085,972.64/8,255,614.87 - Step 6: Final answer
x = 3,286,057.61
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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.