Finding the Fourth Proportional to 198,707,020.76, 274,168,781.34 and 167,037,596.59
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Solution
The fourth proportional to 198,707,020.76, 274,168,781.34 and 167,037,596.59 is: 230,472,451.95
Step by Step Solution
- Step 1: Write the proportion equation
198,707,020.76 : 274,168,781.34 = 167,037,596.59 : x - Step 2: Convert to fraction form
198,707,020.76/274,168,781.34 = 167,037,596.59/x - Step 3: Cross multiply
198,707,020.76x = 274,168,781.34 × 167,037,596.59 - Step 4: Simplify right side
198,707,020.76x = 45,796,494,295,042,840 - Step 5: Solve for x
x = 45,796,494,295,042,840/198,707,020.76 - Step 6: Final answer
x = 230,472,451.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.