Finding the Fourth Proportional to 27,816,879.20, 38,389,591.36 and 15,430,966
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Solution
The fourth proportional to 27,816,879.20, 38,389,591.36 and 15,430,966 is: 21,296,007.89
Step by Step Solution
- Step 1: Write the proportion equation
27,816,879.20 : 38,389,591.36 = 15,430,966 : x - Step 2: Convert to fraction form
27,816,879.20/38,389,591.36 = 15,430,966/x - Step 3: Cross multiply
27,816,879.20x = 38,389,591.36 × 15,430,966 - Step 4: Simplify right side
27,816,879.20x = 592,388,479,030,053.75 - Step 5: Solve for x
x = 592,388,479,030,053.75/27,816,879.20 - Step 6: Final answer
x = 21,296,007.89
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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.