Finding the Fourth Proportional to 5,200,960.42, 7,177,351.34 and 2,909,121.12
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Solution
The fourth proportional to 5,200,960.42, 7,177,351.34 and 2,909,121.12 is: 4,014,601.67
Step by Step Solution
- Step 1: Write the proportion equation
5,200,960.42 : 7,177,351.34 = 2,909,121.12 : x - Step 2: Convert to fraction form
5,200,960.42/7,177,351.34 = 2,909,121.12/x - Step 3: Cross multiply
5,200,960.42x = 7,177,351.34 × 2,909,121.12 - Step 4: Simplify right side
5,200,960.42x = 20,879,784,368,854.30 - Step 5: Solve for x
x = 20,879,784,368,854.30/5,200,960.42 - Step 6: Final answer
x = 4,014,601.67
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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.