Finding the Fourth Proportional to 13,295,473.94, 18,362,879.34 and 8,936,990.84
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Solution
The fourth proportional to 13,295,473.94, 18,362,879.34 and 8,936,990.84 is: 12,343,214.33
Step by Step Solution
- Step 1: Write the proportion equation
13,295,473.94 : 18,362,879.34 = 8,936,990.84 : x - Step 2: Convert to fraction form
13,295,473.94/18,362,879.34 = 8,936,990.84/x - Step 3: Cross multiply
13,295,473.94x = 18,362,879.34 × 8,936,990.84 - Step 4: Simplify right side
13,295,473.94x = 164,108,884,457,605.25 - Step 5: Solve for x
x = 164,108,884,457,605.25/13,295,473.94 - Step 6: Final answer
x = 12,343,214.33
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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.