Finding the Fourth Proportional to 5,474,489.28, 8,211,206.16 and 1,686,955.20
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Solution
The fourth proportional to 5,474,489.28, 8,211,206.16 and 1,686,955.20 is: 2,530,270.17
Step by Step Solution
- Step 1: Write the proportion equation
5,474,489.28 : 8,211,206.16 = 1,686,955.20 : x - Step 2: Convert to fraction form
5,474,489.28/8,211,206.16 = 1,686,955.20/x - Step 3: Cross multiply
5,474,489.28x = 8,211,206.16 × 1,686,955.20 - Step 4: Simplify right side
5,474,489.28x = 13,851,936,929,884.03 - Step 5: Solve for x
x = 13,851,936,929,884.03/5,474,489.28 - Step 6: Final answer
x = 2,530,270.17
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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.