Finding the Fourth Proportional to 5,313,879.58, 7,332,942.57 and 3,139,121.14
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Solution
The fourth proportional to 5,313,879.58, 7,332,942.57 and 3,139,121.14 is: 4,331,862.38
Step by Step Solution
- Step 1: Write the proportion equation
5,313,879.58 : 7,332,942.57 = 3,139,121.14 : x - Step 2: Convert to fraction form
5,313,879.58/7,332,942.57 = 3,139,121.14/x - Step 3: Cross multiply
5,313,879.58x = 7,332,942.57 × 3,139,121.14 - Step 4: Simplify right side
5,313,879.58x = 23,018,995,039,892.93 - Step 5: Solve for x
x = 23,018,995,039,892.93/5,313,879.58 - Step 6: Final answer
x = 4,331,862.38
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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.