Finding the Fourth Proportional to 7,127,517.29, 9,836,181.39 and 4,029,974.15
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Solution
The fourth proportional to 7,127,517.29, 9,836,181.39 and 4,029,974.15 is: 5,561,481.67
Step by Step Solution
- Step 1: Write the proportion equation
7,127,517.29 : 9,836,181.39 = 4,029,974.15 : x - Step 2: Convert to fraction form
7,127,517.29/9,836,181.39 = 4,029,974.15/x - Step 3: Cross multiply
7,127,517.29x = 9,836,181.39 × 4,029,974.15 - Step 4: Simplify right side
7,127,517.29x = 39,639,556,736,411.07 - Step 5: Solve for x
x = 39,639,556,736,411.07/7,127,517.29 - Step 6: Final answer
x = 5,561,481.67
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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.