Finding the Fourth Proportional to 206,694,553.80, 310,041,830.70 and 193,939,969.80
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Solution
The fourth proportional to 206,694,553.80, 310,041,830.70 and 193,939,969.80 is: 290,909,954.70
Step by Step Solution
- Step 1: Write the proportion equation
206,694,553.80 : 310,041,830.70 = 193,939,969.80 : x - Step 2: Convert to fraction form
206,694,553.80/310,041,830.70 = 193,939,969.80/x - Step 3: Cross multiply
206,694,553.80x = 310,041,830.70 × 193,939,969.80 - Step 4: Simplify right side
206,694,553.80x = 60,129,503,282,694,712 - Step 5: Solve for x
x = 60,129,503,282,694,712/206,694,553.80 - Step 6: Final answer
x = 290,909,954.70
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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.