Finding the Fourth Proportional to 13,268,073.88, 18,306,912.62 and 7,464,738.16
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Solution
The fourth proportional to 13,268,073.88, 18,306,912.62 and 7,464,738.16 is: 10,299,634.33
Step by Step Solution
- Step 1: Write the proportion equation
13,268,073.88 : 18,306,912.62 = 7,464,738.16 : x - Step 2: Convert to fraction form
13,268,073.88/18,306,912.62 = 7,464,738.16/x - Step 3: Cross multiply
13,268,073.88x = 18,306,912.62 × 7,464,738.16 - Step 4: Simplify right side
13,268,073.88x = 136,656,309,225,855.91 - Step 5: Solve for x
x = 136,656,309,225,855.91/13,268,073.88 - Step 6: Final answer
x = 10,299,634.33
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1.5x scale
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.