Finding the Fourth Proportional to 3,921,930.18, 5,412,852.81 and 2,394,918.18
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Solution
The fourth proportional to 3,921,930.18, 5,412,852.81 and 2,394,918.18 is: 3,305,346.86
Step by Step Solution
- Step 1: Write the proportion equation
3,921,930.18 : 5,412,852.81 = 2,394,918.18 : x - Step 2: Convert to fraction form
3,921,930.18/5,412,852.81 = 2,394,918.18/x - Step 3: Cross multiply
3,921,930.18x = 5,412,852.81 × 2,394,918.18 - Step 4: Simplify right side
3,921,930.18x = 12,963,339,600,333.09 - Step 5: Solve for x
x = 12,963,339,600,333.09/3,921,930.18 - Step 6: Final answer
x = 3,305,346.86
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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.