Finding the Fourth Proportional to 7,380,191.80, 11,070,287.70 and 5,490,623.80
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Solution
The fourth proportional to 7,380,191.80, 11,070,287.70 and 5,490,623.80 is: 8,235,935.70
Step by Step Solution
- Step 1: Write the proportion equation
7,380,191.80 : 11,070,287.70 = 5,490,623.80 : x - Step 2: Convert to fraction form
7,380,191.80/11,070,287.70 = 5,490,623.80/x - Step 3: Cross multiply
7,380,191.80x = 11,070,287.70 × 5,490,623.80 - Step 4: Simplify right side
7,380,191.80x = 60,782,785,118,467.25 - Step 5: Solve for x
x = 60,782,785,118,467.25/7,380,191.80 - Step 6: Final answer
x = 8,235,935.70
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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.