Finding the Fourth Proportional to 18,612,960.79, 27,920,192.07 and 6,483,651.04
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Solution
The fourth proportional to 18,612,960.79, 27,920,192.07 and 6,483,651.04 is: 9,725,738.12
Step by Step Solution
- Step 1: Write the proportion equation
18,612,960.79 : 27,920,192.07 = 6,483,651.04 : x - Step 2: Convert to fraction form
18,612,960.79/27,920,192.07 = 6,483,651.04/x - Step 3: Cross multiply
18,612,960.79x = 27,920,192.07 × 6,483,651.04 - Step 4: Simplify right side
18,612,960.79x = 181,024,782,351,655.25 - Step 5: Solve for x
x = 181,024,782,351,655.25/18,612,960.79 - Step 6: Final answer
x = 9,725,738.12
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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.