Finding the Fourth Proportional to 20,025,790.77, 27,636,134.64 and 11,325,264.48
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Solution
The fourth proportional to 20,025,790.77, 27,636,134.64 and 11,325,264.48 is: 15,629,172.28
Step by Step Solution
- Step 1: Write the proportion equation
20,025,790.77 : 27,636,134.64 = 11,325,264.48 : x - Step 2: Convert to fraction form
20,025,790.77/27,636,134.64 = 11,325,264.48/x - Step 3: Cross multiply
20,025,790.77x = 27,636,134.64 × 11,325,264.48 - Step 4: Simplify right side
20,025,790.77x = 312,986,534,002,889.62 - Step 5: Solve for x
x = 312,986,534,002,889.62/20,025,790.77 - Step 6: Final answer
x = 15,629,172.28
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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.