Finding the Fourth Proportional to 7,338,945.80, 11,008,418.70 and 6,276,063.80
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Solution
The fourth proportional to 7,338,945.80, 11,008,418.70 and 6,276,063.80 is: 9,414,095.70
Step by Step Solution
- Step 1: Write the proportion equation
7,338,945.80 : 11,008,418.70 = 6,276,063.80 : x - Step 2: Convert to fraction form
7,338,945.80/11,008,418.70 = 6,276,063.80/x - Step 3: Cross multiply
7,338,945.80x = 11,008,418.70 × 6,276,063.80 - Step 4: Simplify right side
7,338,945.80x = 69,089,538,098,313.05 - Step 5: Solve for x
x = 69,089,538,098,313.05/7,338,945.80 - Step 6: Final answer
x = 9,414,095.70
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.