Finding the Fourth Proportional to 206,694,577.80, 310,041,866.70 and 193,939,993.80
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Solution
The fourth proportional to 206,694,577.80, 310,041,866.70 and 193,939,993.80 is: 290,909,990.70
Step by Step Solution
- Step 1: Write the proportion equation
206,694,577.80 : 310,041,866.70 = 193,939,993.80 : x - Step 2: Convert to fraction form
206,694,577.80/310,041,866.70 = 193,939,993.80/x - Step 3: Cross multiply
206,694,577.80x = 310,041,866.70 × 193,939,993.80 - Step 4: Simplify right side
206,694,577.80x = 60,129,517,705,538,424 - Step 5: Solve for x
x = 60,129,517,705,538,424/206,694,577.80 - Step 6: Final answer
x = 290,909,990.70
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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.