Finding the Fourth Proportional to 206,990,135.70, 310,441,657.95 and 104,657,975.70
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Solution
The fourth proportional to 206,990,135.70, 310,441,657.95 and 104,657,975.70 is: 156,964,946.10
Step by Step Solution
- Step 1: Write the proportion equation
206,990,135.70 : 310,441,657.95 = 104,657,975.70 : x - Step 2: Convert to fraction form
206,990,135.70/310,441,657.95 = 104,657,975.70/x - Step 3: Cross multiply
206,990,135.70x = 310,441,657.95 × 104,657,975.70 - Step 4: Simplify right side
206,990,135.70x = 32,490,195,493,998,812 - Step 5: Solve for x
x = 32,490,195,493,998,812/206,990,135.70 - Step 6: Final answer
x = 156,964,946.10
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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.