Finding the Fourth Proportional to 108,804,738.20, 163,207,107.30 and 74,367,361.40
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Solution
The fourth proportional to 108,804,738.20, 163,207,107.30 and 74,367,361.40 is: 111,551,042.10
Step by Step Solution
- Step 1: Write the proportion equation
108,804,738.20 : 163,207,107.30 = 74,367,361.40 : x - Step 2: Convert to fraction form
108,804,738.20/163,207,107.30 = 74,367,361.40/x - Step 3: Cross multiply
108,804,738.20x = 163,207,107.30 × 74,367,361.40 - Step 4: Simplify right side
108,804,738.20x = 12,137,281,931,627,680 - Step 5: Solve for x
x = 12,137,281,931,627,680/108,804,738.20 - Step 6: Final answer
x = 111,551,042.10
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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.