Finding the Fourth Proportional to 5,480,164.80, 8,220,247.20 and 5,259,715.20
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Solution
The fourth proportional to 5,480,164.80, 8,220,247.20 and 5,259,715.20 is: 7,889,572.80
Step by Step Solution
- Step 1: Write the proportion equation
5,480,164.80 : 8,220,247.20 = 5,259,715.20 : x - Step 2: Convert to fraction form
5,480,164.80/8,220,247.20 = 5,259,715.20/x - Step 3: Cross multiply
5,480,164.80x = 8,220,247.20 × 5,259,715.20 - Step 4: Simplify right side
5,480,164.80x = 43,236,159,145,597.45 - Step 5: Solve for x
x = 43,236,159,145,597.45/5,480,164.80 - Step 6: Final answer
x = 7,889,572.80
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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.