Finding the Fourth Proportional to 13,182,911.93, 18,192,563.97 and 7,302,636.18
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Solution
The fourth proportional to 13,182,911.93, 18,192,563.97 and 7,302,636.18 is: 10,077,718.53
Step by Step Solution
- Step 1: Write the proportion equation
13,182,911.93 : 18,192,563.97 = 7,302,636.18 : x - Step 2: Convert to fraction form
13,182,911.93/18,192,563.97 = 7,302,636.18/x - Step 3: Cross multiply
13,182,911.93x = 18,192,563.97 × 7,302,636.18 - Step 4: Simplify right side
13,182,911.93x = 132,853,675,854,286.42 - Step 5: Solve for x
x = 132,853,675,854,286.42/13,182,911.93 - Step 6: Final answer
x = 10,077,718.53
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1.5x scale
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.