Finding the Fourth Proportional to 5,139,238.83, 7,092,144.05 and 2,816,187.99
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Solution
The fourth proportional to 5,139,238.83, 7,092,144.05 and 2,816,187.99 is: 3,886,336.39
Step by Step Solution
- Step 1: Write the proportion equation
5,139,238.83 : 7,092,144.05 = 2,816,187.99 : x - Step 2: Convert to fraction form
5,139,238.83/7,092,144.05 = 2,816,187.99/x - Step 3: Cross multiply
5,139,238.83x = 7,092,144.05 × 2,816,187.99 - Step 4: Simplify right side
5,139,238.83x = 19,972,810,882,879.02 - Step 5: Solve for x
x = 19,972,810,882,879.02/5,139,238.83 - Step 6: Final answer
x = 3,886,336.39
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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.