Finding the Fourth Proportional to 18,655,636.80, 27,920,250.90 and 11,471,720.88
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Solution
The fourth proportional to 18,655,636.80, 27,920,250.90 and 11,471,720.88 is: 17,168,715.74
Step by Step Solution
- Step 1: Write the proportion equation
18,655,636.80 : 27,920,250.90 = 11,471,720.88 : x - Step 2: Convert to fraction form
18,655,636.80/27,920,250.90 = 11,471,720.88/x - Step 3: Cross multiply
18,655,636.80x = 27,920,250.90 × 11,471,720.88 - Step 4: Simplify right side
18,655,636.80x = 320,293,325,224,368.81 - Step 5: Solve for x
x = 320,293,325,224,368.81/18,655,636.80 - Step 6: Final answer
x = 17,168,715.74
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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.