Finding the Fourth Proportional to 393,984,135.10, 590,976,202.65 and 248,865,312.70
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Solution
The fourth proportional to 393,984,135.10, 590,976,202.65 and 248,865,312.70 is: 373,297,969.05
Step by Step Solution
- Step 1: Write the proportion equation
393,984,135.10 : 590,976,202.65 = 248,865,312.70 : x - Step 2: Convert to fraction form
393,984,135.10/590,976,202.65 = 248,865,312.70/x - Step 3: Cross multiply
393,984,135.10x = 590,976,202.65 × 248,865,312.70 - Step 4: Simplify right side
393,984,135.10x = 147,073,477,470,750,816 - Step 5: Solve for x
x = 147,073,477,470,750,816/393,984,135.10 - Step 6: Final answer
x = 373,297,969.05
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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.