Finding the Fourth Proportional to 13,309,250.36, 18,366,820.74 and 7,197,678.92
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Solution
The fourth proportional to 13,309,250.36, 18,366,820.74 and 7,197,678.92 is: 9,932,826.79
Step by Step Solution
- Step 1: Write the proportion equation
13,309,250.36 : 18,366,820.74 = 7,197,678.92 : x - Step 2: Convert to fraction form
13,309,250.36/18,366,820.74 = 7,197,678.92/x - Step 3: Cross multiply
13,309,250.36x = 18,366,820.74 × 7,197,678.92 - Step 4: Simplify right side
13,309,250.36x = 132,198,478,467,716.78 - Step 5: Solve for x
x = 132,198,478,467,716.78/13,309,250.36 - Step 6: Final answer
x = 9,932,826.79
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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.