Finding the Fourth Proportional to 1,638,752,375.40, 2,458,128,563.10 and 1,611,542,596.20
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Solution
The fourth proportional to 1,638,752,375.40, 2,458,128,563.10 and 1,611,542,596.20 is: 2,417,313,894.30
Step by Step Solution
- Step 1: Write the proportion equation
1,638,752,375.40 : 2,458,128,563.10 = 1,611,542,596.20 : x - Step 2: Convert to fraction form
1,638,752,375.40/2,458,128,563.10 = 1,611,542,596.20/x - Step 3: Cross multiply
1,638,752,375.40x = 2,458,128,563.10 × 1,611,542,596.20 - Step 4: Simplify right side
1,638,752,375.40x = 3,961,378,886,371,549,696 - Step 5: Solve for x
x = 3,961,378,886,371,549,696/1,638,752,375.40 - Step 6: Final answer
x = 2,417,313,894.30
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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.