Finding the Fourth Proportional to 18,498,918.18, 27,757,945.08 and 13,423,195.34
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Solution
The fourth proportional to 18,498,918.18, 27,757,945.08 and 13,423,195.34 is: 20,141,735.60
Step by Step Solution
- Step 1: Write the proportion equation
18,498,918.18 : 27,757,945.08 = 13,423,195.34 : x - Step 2: Convert to fraction form
18,498,918.18/27,757,945.08 = 13,423,195.34/x - Step 3: Cross multiply
18,498,918.18x = 27,757,945.08 × 13,423,195.34 - Step 4: Simplify right side
18,498,918.18x = 372,600,318,907,042.19 - Step 5: Solve for x
x = 372,600,318,907,042.19/18,498,918.18 - Step 6: Final answer
x = 20,141,735.60
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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.