Finding the Fourth Proportional to 10,170,815.40, 15,256,223.10 and 6,131,863.80
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Solution
The fourth proportional to 10,170,815.40, 15,256,223.10 and 6,131,863.80 is: 9,197,795.70
Step by Step Solution
- Step 1: Write the proportion equation
10,170,815.40 : 15,256,223.10 = 6,131,863.80 : x - Step 2: Convert to fraction form
10,170,815.40/15,256,223.10 = 6,131,863.80/x - Step 3: Cross multiply
10,170,815.40x = 15,256,223.10 × 6,131,863.80 - Step 4: Simplify right side
10,170,815.40x = 93,549,082,151,613.78 - Step 5: Solve for x
x = 93,549,082,151,613.78/10,170,815.40 - Step 6: Final answer
x = 9,197,795.70
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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.