Finding the Fourth Proportional to 8,798,945.80, 13,198,418.70 and 5,019,809.80
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Solution
The fourth proportional to 8,798,945.80, 13,198,418.70 and 5,019,809.80 is: 7,529,714.70
Step by Step Solution
- Step 1: Write the proportion equation
8,798,945.80 : 13,198,418.70 = 5,019,809.80 : x - Step 2: Convert to fraction form
8,798,945.80/13,198,418.70 = 5,019,809.80/x - Step 3: Cross multiply
8,798,945.80x = 13,198,418.70 × 5,019,809.80 - Step 4: Simplify right side
8,798,945.80x = 66,253,551,534,763.25 - Step 5: Solve for x
x = 66,253,551,534,763.25/8,798,945.80 - Step 6: Final answer
x = 7,529,714.70
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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.