Finding the Fourth Proportional to 5,366,485.38, 7,405,915.29 and 2,919,274.50
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Solution
The fourth proportional to 5,366,485.38, 7,405,915.29 and 2,919,274.50 is: 4,028,688.82
Step by Step Solution
- Step 1: Write the proportion equation
5,366,485.38 : 7,405,915.29 = 2,919,274.50 : x - Step 2: Convert to fraction form
5,366,485.38/7,405,915.29 = 2,919,274.50/x - Step 3: Cross multiply
5,366,485.38x = 7,405,915.29 × 2,919,274.50 - Step 4: Simplify right side
5,366,485.38x = 21,619,899,655,257.11 - Step 5: Solve for x
x = 21,619,899,655,257.11/5,366,485.38 - Step 6: Final answer
x = 4,028,688.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.