Finding the Fourth Proportional to 358,571,968.31, 494,816,252.25 and 199,793,887.49
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Solution
The fourth proportional to 358,571,968.31, 494,816,252.25 and 199,793,887.49 is: 275,708,285.56
Step by Step Solution
- Step 1: Write the proportion equation
358,571,968.31 : 494,816,252.25 = 199,793,887.49 : x - Step 2: Convert to fraction form
358,571,968.31/494,816,252.25 = 199,793,887.49/x - Step 3: Cross multiply
358,571,968.31x = 494,816,252.25 × 199,793,887.49 - Step 4: Simplify right side
358,571,968.31x = 98,861,262,632,246,240 - Step 5: Solve for x
x = 98,861,262,632,246,240/358,571,968.31 - Step 6: Final answer
x = 275,708,285.56
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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.