Finding the Fourth Proportional to 7,351,025.40, 11,026,538.10 and 5,319,739.80
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Solution
The fourth proportional to 7,351,025.40, 11,026,538.10 and 5,319,739.80 is: 7,979,609.70
Step by Step Solution
- Step 1: Write the proportion equation
7,351,025.40 : 11,026,538.10 = 5,319,739.80 : x - Step 2: Convert to fraction form
7,351,025.40/11,026,538.10 = 5,319,739.80/x - Step 3: Cross multiply
7,351,025.40x = 11,026,538.10 × 5,319,739.80 - Step 4: Simplify right side
7,351,025.40x = 58,658,313,586,786.38 - Step 5: Solve for x
x = 58,658,313,586,786.38/7,351,025.40 - Step 6: Final answer
x = 7,979,609.70
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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.