Finding the Fourth Proportional to 20,100,528.96, 27,731,215.53 and 11,835,540.06
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Solution
The fourth proportional to 20,100,528.96, 27,731,215.53 and 11,835,540.06 is: 16,328,620.65
Step by Step Solution
- Step 1: Write the proportion equation
20,100,528.96 : 27,731,215.53 = 11,835,540.06 : x - Step 2: Convert to fraction form
20,100,528.96/27,731,215.53 = 11,835,540.06/x - Step 3: Cross multiply
20,100,528.96x = 27,731,215.53 × 11,835,540.06 - Step 4: Simplify right side
20,100,528.96x = 328,213,912,317,809.19 - Step 5: Solve for x
x = 328,213,912,317,809.19/20,100,528.96 - Step 6: Final answer
x = 16,328,620.65
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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.