Finding the Fourth Proportional to 206,864,366.80, 310,296,550.20 and 70,554,197.20
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Solution
The fourth proportional to 206,864,366.80, 310,296,550.20 and 70,554,197.20 is: 105,831,295.80
Step by Step Solution
- Step 1: Write the proportion equation
206,864,366.80 : 310,296,550.20 = 70,554,197.20 : x - Step 2: Convert to fraction form
206,864,366.80/310,296,550.20 = 70,554,197.20/x - Step 3: Cross multiply
206,864,366.80x = 310,296,550.20 × 70,554,197.20 - Step 4: Simplify right side
206,864,366.80x = 21,892,723,993,290,500 - Step 5: Solve for x
x = 21,892,723,993,290,500/206,864,366.80 - Step 6: Final answer
x = 105,831,295.80
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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.