Finding the Fourth Proportional to 15,066,402.36, 20,791,871.82 and 8,190,910.68
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Solution
The fourth proportional to 15,066,402.36, 20,791,871.82 and 8,190,910.68 is: 11,303,585.35
Step by Step Solution
- Step 1: Write the proportion equation
15,066,402.36 : 20,791,871.82 = 8,190,910.68 : x - Step 2: Convert to fraction form
15,066,402.36/20,791,871.82 = 8,190,910.68/x - Step 3: Cross multiply
15,066,402.36x = 20,791,871.82 × 8,190,910.68 - Step 4: Simplify right side
15,066,402.36x = 170,304,364,947,629.03 - Step 5: Solve for x
x = 170,304,364,947,629.03/15,066,402.36 - Step 6: Final answer
x = 11,303,585.35
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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.