Finding the Fourth Proportional to 196,993,454.20, 295,490,181.30 and 115,364,116.60
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Solution
The fourth proportional to 196,993,454.20, 295,490,181.30 and 115,364,116.60 is: 173,046,174.90
Step by Step Solution
- Step 1: Write the proportion equation
196,993,454.20 : 295,490,181.30 = 115,364,116.60 : x - Step 2: Convert to fraction form
196,993,454.20/295,490,181.30 = 115,364,116.60/x - Step 3: Cross multiply
196,993,454.20x = 295,490,181.30 × 115,364,116.60 - Step 4: Simplify right side
196,993,454.20x = 34,088,963,729,648,340 - Step 5: Solve for x
x = 34,088,963,729,648,340/196,993,454.20 - Step 6: Final answer
x = 173,046,174.90
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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.