Finding the Fourth Proportional to 19,987,643.28, 27,583,037.16 and 10,820,286
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Solution
The fourth proportional to 19,987,643.28, 27,583,037.16 and 10,820,286 is: 14,932,043.09
Step by Step Solution
- Step 1: Write the proportion equation
19,987,643.28 : 27,583,037.16 = 10,820,286 : x - Step 2: Convert to fraction form
19,987,643.28/27,583,037.16 = 10,820,286/x - Step 3: Cross multiply
19,987,643.28x = 27,583,037.16 × 10,820,286 - Step 4: Simplify right side
19,987,643.28x = 298,456,350,819,827.75 - Step 5: Solve for x
x = 298,456,350,819,827.75/19,987,643.28 - Step 6: Final answer
x = 14,932,043.09
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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.