Finding the Fourth Proportional to 13,706,290.24, 18,912,636.99 and 8,484,550.72
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Solution
The fourth proportional to 13,706,290.24, 18,912,636.99 and 8,484,550.72 is: 11,707,414.99
Step by Step Solution
- Step 1: Write the proportion equation
13,706,290.24 : 18,912,636.99 = 8,484,550.72 : x - Step 2: Convert to fraction form
13,706,290.24/18,912,636.99 = 8,484,550.72/x - Step 3: Cross multiply
13,706,290.24x = 18,912,636.99 × 8,484,550.72 - Step 4: Simplify right side
13,706,290.24x = 160,465,227,743,321.50 - Step 5: Solve for x
x = 160,465,227,743,321.50/13,706,290.24 - Step 6: Final answer
x = 11,707,414.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.