Finding the Fourth Proportional to 7,447,210.70, 11,170,816.05 and 4,612,858.70
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Solution
The fourth proportional to 7,447,210.70, 11,170,816.05 and 4,612,858.70 is: 6,919,288.05
Step by Step Solution
- Step 1: Write the proportion equation
7,447,210.70 : 11,170,816.05 = 4,612,858.70 : x - Step 2: Convert to fraction form
7,447,210.70/11,170,816.05 = 4,612,858.70/x - Step 3: Cross multiply
7,447,210.70x = 11,170,816.05 × 4,612,858.70 - Step 4: Simplify right side
7,447,210.70x = 51,529,396,002,342.14 - Step 5: Solve for x
x = 51,529,396,002,342.14/7,447,210.70 - Step 6: Final answer
x = 6,919,288.05
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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.