Finding the Fourth Proportional to 6,898,553.80, 10,347,830.70 and 6,378,922.60
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Solution
The fourth proportional to 6,898,553.80, 10,347,830.70 and 6,378,922.60 is: 9,568,383.90
Step by Step Solution
- Step 1: Write the proportion equation
6,898,553.80 : 10,347,830.70 = 6,378,922.60 : x - Step 2: Convert to fraction form
6,898,553.80/10,347,830.70 = 6,378,922.60/x - Step 3: Cross multiply
6,898,553.80x = 10,347,830.70 × 6,378,922.60 - Step 4: Simplify right side
6,898,553.80x = 66,008,011,113,203.81 - Step 5: Solve for x
x = 66,008,011,113,203.81/6,898,553.80 - Step 6: Final answer
x = 9,568,383.90
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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.