Finding the Fourth Proportional to 2,660,348.20, 3,990,374.20 and 2,364,217.40
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Solution
The fourth proportional to 2,660,348.20, 3,990,374.20 and 2,364,217.40 is: 3,546,194.49
Step by Step Solution
- Step 1: Write the proportion equation
2,660,348.20 : 3,990,374.20 = 2,364,217.40 : x - Step 2: Convert to fraction form
2,660,348.20/3,990,374.20 = 2,364,217.40/x - Step 3: Cross multiply
2,660,348.20x = 3,990,374.20 × 2,364,217.40 - Step 4: Simplify right side
2,660,348.20x = 9,434,112,116,151.08 - Step 5: Solve for x
x = 9,434,112,116,151.08/2,660,348.20 - Step 6: Final answer
x = 3,546,194.49
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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.