Finding the Fourth Proportional to 4,821,812.20, 6,657,639.78 and 4,224,615.40
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Solution
The fourth proportional to 4,821,812.20, 6,657,639.78 and 4,224,615.40 is: 5,833,069.89
Step by Step Solution
- Step 1: Write the proportion equation
4,821,812.20 : 6,657,639.78 = 4,224,615.40 : x - Step 2: Convert to fraction form
4,821,812.20/6,657,639.78 = 4,224,615.40/x - Step 3: Cross multiply
4,821,812.20x = 6,657,639.78 × 4,224,615.40 - Step 4: Simplify right side
4,821,812.20x = 28,125,967,542,240.62 - Step 5: Solve for x
x = 28,125,967,542,240.62/4,821,812.20 - Step 6: Final answer
x = 5,833,069.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.