Finding the Fourth Proportional to 265,721,190.70, 398,581,786.05 and 248,715,078.70
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Solution
The fourth proportional to 265,721,190.70, 398,581,786.05 and 248,715,078.70 is: 373,072,618.05
Step by Step Solution
- Step 1: Write the proportion equation
265,721,190.70 : 398,581,786.05 = 248,715,078.70 : x - Step 2: Convert to fraction form
265,721,190.70/398,581,786.05 = 248,715,078.70/x - Step 3: Cross multiply
265,721,190.70x = 398,581,786.05 × 248,715,078.70 - Step 4: Simplify right side
265,721,190.70x = 99,133,300,285,812,304 - Step 5: Solve for x
x = 99,133,300,285,812,304/265,721,190.70 - Step 6: Final answer
x = 373,072,618.05
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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.