Finding the Fourth Proportional to 358,571,969.99, 494,816,254.61 and 199,793,889.17
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Solution
The fourth proportional to 358,571,969.99, 494,816,254.61 and 199,793,889.17 is: 275,708,287.89
Step by Step Solution
- Step 1: Write the proportion equation
358,571,969.99 : 494,816,254.61 = 199,793,889.17 : x - Step 2: Convert to fraction form
358,571,969.99/494,816,254.61 = 199,793,889.17/x - Step 3: Cross multiply
358,571,969.99x = 494,816,254.61 × 199,793,889.17 - Step 4: Simplify right side
358,571,969.99x = 98,861,263,929,591,792 - Step 5: Solve for x
x = 98,861,263,929,591,792/358,571,969.99 - Step 6: Final answer
x = 275,708,287.89
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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.