Finding the Fourth Proportional to 18,135,043.20, 27,202,564.80 and 6,006,378.60
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Solution
The fourth proportional to 18,135,043.20, 27,202,564.80 and 6,006,378.60 is: 9,009,567.90
Step by Step Solution
- Step 1: Write the proportion equation
18,135,043.20 : 27,202,564.80 = 6,006,378.60 : x - Step 2: Convert to fraction form
18,135,043.20/27,202,564.80 = 6,006,378.60/x - Step 3: Cross multiply
18,135,043.20x = 27,202,564.80 × 6,006,378.60 - Step 4: Simplify right side
18,135,043.20x = 163,388,903,079,833.28 - Step 5: Solve for x
x = 163,388,903,079,833.28/18,135,043.20 - Step 6: Final answer
x = 9,009,567.90
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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.