Finding the Fourth Proportional to 80,939,519.11, 121,391,883.51 and 25,611,738.49
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Solution
The fourth proportional to 80,939,519.11, 121,391,883.51 and 25,611,738.49 is: 38,412,103.38
Step by Step Solution
- Step 1: Write the proportion equation
80,939,519.11 : 121,391,883.51 = 25,611,738.49 : x - Step 2: Convert to fraction form
80,939,519.11/121,391,883.51 = 25,611,738.49/x - Step 3: Cross multiply
80,939,519.11x = 121,391,883.51 × 25,611,738.49 - Step 4: Simplify right side
80,939,519.11x = 3,109,057,175,266,663 - Step 5: Solve for x
x = 3,109,057,175,266,663/80,939,519.11 - Step 6: Final answer
x = 38,412,103.38
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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.