Finding the Fourth Proportional to 18,468,634.80, 27,702,952.20 and 15,322,906.80
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Solution
The fourth proportional to 18,468,634.80, 27,702,952.20 and 15,322,906.80 is: 22,984,360.20
Step by Step Solution
- Step 1: Write the proportion equation
18,468,634.80 : 27,702,952.20 = 15,322,906.80 : x - Step 2: Convert to fraction form
18,468,634.80/27,702,952.20 = 15,322,906.80/x - Step 3: Cross multiply
18,468,634.80x = 27,702,952.20 × 15,322,906.80 - Step 4: Simplify right side
18,468,634.80x = 424,489,754,645,455 - Step 5: Solve for x
x = 424,489,754,645,455/18,468,634.80 - Step 6: Final answer
x = 22,984,360.20
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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.