Finding the Fourth Proportional to 3,880,921,763.60, 5,821,382,645.40 and 2,133,449,277.20
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Solution
The fourth proportional to 3,880,921,763.60, 5,821,382,645.40 and 2,133,449,277.20 is: 3,200,173,915.80
Step by Step Solution
- Step 1: Write the proportion equation
3,880,921,763.60 : 5,821,382,645.40 = 2,133,449,277.20 : x - Step 2: Convert to fraction form
3,880,921,763.60/5,821,382,645.40 = 2,133,449,277.20/x - Step 3: Cross multiply
3,880,921,763.60x = 5,821,382,645.40 × 2,133,449,277.20 - Step 4: Simplify right side
3,880,921,763.60x = 12,419,624,597,133,252,608 - Step 5: Solve for x
x = 12,419,624,597,133,252,608/3,880,921,763.60 - Step 6: Final answer
x = 3,200,173,915.80
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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.