Finding the Fourth Proportional to 137,796,232.70, 206,694,349.05 and 68,921,479.10
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Solution
The fourth proportional to 137,796,232.70, 206,694,349.05 and 68,921,479.10 is: 103,382,218.65
Step by Step Solution
- Step 1: Write the proportion equation
137,796,232.70 : 206,694,349.05 = 68,921,479.10 : x - Step 2: Convert to fraction form
137,796,232.70/206,694,349.05 = 68,921,479.10/x - Step 3: Cross multiply
137,796,232.70x = 206,694,349.05 × 68,921,479.10 - Step 4: Simplify right side
137,796,232.70x = 14,245,680,258,137,680 - Step 5: Solve for x
x = 14,245,680,258,137,680/137,796,232.70 - Step 6: Final answer
x = 103,382,218.65
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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.