Finding the Fourth Proportional to 7,338,941.80, 11,008,412.70 and 3,979,709.80
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Solution
The fourth proportional to 7,338,941.80, 11,008,412.70 and 3,979,709.80 is: 5,969,564.70
Step by Step Solution
- Step 1: Write the proportion equation
7,338,941.80 : 11,008,412.70 = 3,979,709.80 : x - Step 2: Convert to fraction form
7,338,941.80/11,008,412.70 = 3,979,709.80/x - Step 3: Cross multiply
7,338,941.80x = 11,008,412.70 × 3,979,709.80 - Step 4: Simplify right side
7,338,941.80x = 43,810,287,904,634.45 - Step 5: Solve for x
x = 43,810,287,904,634.45/7,338,941.80 - Step 6: Final answer
x = 5,969,564.70
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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.