Finding the Fourth Proportional to 13,342,372.50, 18,414,450.45 and 8,448,049.62
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Solution
The fourth proportional to 13,342,372.50, 18,414,450.45 and 8,448,049.62 is: 11,659,559.88
Step by Step Solution
- Step 1: Write the proportion equation
13,342,372.50 : 18,414,450.45 = 8,448,049.62 : x - Step 2: Convert to fraction form
13,342,372.50/18,414,450.45 = 8,448,049.62/x - Step 3: Cross multiply
13,342,372.50x = 18,414,450.45 × 8,448,049.62 - Step 4: Simplify right side
13,342,372.50x = 155,566,191,126,631.31 - Step 5: Solve for x
x = 155,566,191,126,631.31/13,342,372.50 - Step 6: Final answer
x = 11,659,559.88
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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.