Finding the Fourth Proportional to 12,915,201.48, 17,822,319.66 and 7,113,858.36
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Solution
The fourth proportional to 12,915,201.48, 17,822,319.66 and 7,113,858.36 is: 9,816,761.89
Step by Step Solution
- Step 1: Write the proportion equation
12,915,201.48 : 17,822,319.66 = 7,113,858.36 : x - Step 2: Convert to fraction form
12,915,201.48/17,822,319.66 = 7,113,858.36/x - Step 3: Cross multiply
12,915,201.48x = 17,822,319.66 × 7,113,858.36 - Step 4: Simplify right side
12,915,201.48x = 126,785,457,707,883.36 - Step 5: Solve for x
x = 126,785,457,707,883.36/12,915,201.48 - Step 6: Final answer
x = 9,816,761.89
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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.