Finding the Fourth Proportional to 8,481,946.62, 11,709,151.83 and 5,221,556.09
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Solution
The fourth proportional to 8,481,946.62, 11,709,151.83 and 5,221,556.09 is: 7,208,250.15
Step by Step Solution
- Step 1: Write the proportion equation
8,481,946.62 : 11,709,151.83 = 5,221,556.09 : x - Step 2: Convert to fraction form
8,481,946.62/11,709,151.83 = 5,221,556.09/x - Step 3: Cross multiply
8,481,946.62x = 11,709,151.83 × 5,221,556.09 - Step 4: Simplify right side
8,481,946.62x = 61,139,992,988,125.38 - Step 5: Solve for x
x = 61,139,992,988,125.38/8,481,946.62 - Step 6: Final answer
x = 7,208,250.15
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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.