Finding the Fourth Proportional to 18,412,720.75, 25,409,556.30 and 10,263,958.75
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Solution
The fourth proportional to 18,412,720.75, 25,409,556.30 and 10,263,958.75 is: 14,164,264.00
Step by Step Solution
- Step 1: Write the proportion equation
18,412,720.75 : 25,409,556.30 = 10,263,958.75 : x - Step 2: Convert to fraction form
18,412,720.75/25,409,556.30 = 10,263,958.75/x - Step 3: Cross multiply
18,412,720.75x = 25,409,556.30 × 10,263,958.75 - Step 4: Simplify right side
18,412,720.75x = 260,802,637,719,002.62 - Step 5: Solve for x
x = 260,802,637,719,002.62/18,412,720.75 - Step 6: Final answer
x = 14,164,264.00
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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.