Finding the Fourth Proportional to 12,273,013.48, 18,409,519.68 and 11,659,313.96
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Solution
The fourth proportional to 12,273,013.48, 18,409,519.68 and 11,659,313.96 is: 17,488,970.43
Step by Step Solution
- Step 1: Write the proportion equation
12,273,013.48 : 18,409,519.68 = 11,659,313.96 : x - Step 2: Convert to fraction form
12,273,013.48/18,409,519.68 = 11,659,313.96/x - Step 3: Cross multiply
12,273,013.48x = 18,409,519.68 × 11,659,313.96 - Step 4: Simplify right side
12,273,013.48x = 214,642,369,801,918.75 - Step 5: Solve for x
x = 214,642,369,801,918.75/12,273,013.48 - Step 6: Final answer
x = 17,488,970.43
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1.5x scale
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.