Finding the Fourth Proportional to 7,171,440.40, 10,757,160.60 and 2,622,480.40
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Solution
The fourth proportional to 7,171,440.40, 10,757,160.60 and 2,622,480.40 is: 3,933,720.60
Step by Step Solution
- Step 1: Write the proportion equation
7,171,440.40 : 10,757,160.60 = 2,622,480.40 : x - Step 2: Convert to fraction form
7,171,440.40/10,757,160.60 = 2,622,480.40/x - Step 3: Cross multiply
7,171,440.40x = 10,757,160.60 × 2,622,480.40 - Step 4: Simplify right side
7,171,440.40x = 28,210,442,833,152.24 - Step 5: Solve for x
x = 28,210,442,833,152.24/7,171,440.40 - Step 6: Final answer
x = 3,933,720.60
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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.