Finding the Fourth Proportional to 11,110,879.70, 15,333,609.33 and 6,215,809.78
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Solution
The fourth proportional to 11,110,879.70, 15,333,609.33 and 6,215,809.78 is: 8,578,150.55
Step by Step Solution
- Step 1: Write the proportion equation
11,110,879.70 : 15,333,609.33 = 6,215,809.78 : x - Step 2: Convert to fraction form
11,110,879.70/15,333,609.33 = 6,215,809.78/x - Step 3: Cross multiply
11,110,879.70x = 15,333,609.33 × 6,215,809.78 - Step 4: Simplify right side
11,110,879.70x = 95,310,798,836,113.25 - Step 5: Solve for x
x = 95,310,798,836,113.25/11,110,879.70 - Step 6: Final answer
x = 8,578,150.55
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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.