Finding the Fourth Proportional to 8,085,276.10, 12,128,108.55 and 2,405,685.70
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Solution
The fourth proportional to 8,085,276.10, 12,128,108.55 and 2,405,685.70 is: 3,608,586.39
Step by Step Solution
- Step 1: Write the proportion equation
8,085,276.10 : 12,128,108.55 = 2,405,685.70 : x - Step 2: Convert to fraction form
8,085,276.10/12,128,108.55 = 2,405,685.70/x - Step 3: Cross multiply
8,085,276.10x = 12,128,108.55 × 2,405,685.70 - Step 4: Simplify right side
8,085,276.10x = 29,176,417,306,782.74 - Step 5: Solve for x
x = 29,176,417,306,782.74/8,085,276.10 - Step 6: Final answer
x = 3,608,586.39
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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.