Finding the Fourth Proportional to 5,535,778.84, 7,639,640.24 and 3,121,279
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Solution
The fourth proportional to 5,535,778.84, 7,639,640.24 and 3,121,279 is: 4,307,514.69
Step by Step Solution
- Step 1: Write the proportion equation
5,535,778.84 : 7,639,640.24 = 3,121,279 : x - Step 2: Convert to fraction form
5,535,778.84/7,639,640.24 = 3,121,279/x - Step 3: Cross multiply
5,535,778.84x = 7,639,640.24 × 3,121,279 - Step 4: Simplify right side
5,535,778.84x = 23,845,448,648,666.96 - Step 5: Solve for x
x = 23,845,448,648,666.96/5,535,778.84 - Step 6: Final answer
x = 4,307,514.69
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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.