Finding the Fourth Proportional to 18,998,351.70, 28,488,546.27 and 6,865,458.90
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Solution
The fourth proportional to 18,998,351.70, 28,488,546.27 and 6,865,458.90 is: 10,294,942.77
Step by Step Solution
- Step 1: Write the proportion equation
18,998,351.70 : 28,488,546.27 = 6,865,458.90 : x - Step 2: Convert to fraction form
18,998,351.70/28,488,546.27 = 6,865,458.90/x - Step 3: Cross multiply
18,998,351.70x = 28,488,546.27 × 6,865,458.90 - Step 4: Simplify right side
18,998,351.70x = 195,586,943,537,433.31 - Step 5: Solve for x
x = 195,586,943,537,433.31/18,998,351.70 - Step 6: Final answer
x = 10,294,942.77
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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.