Finding the Fourth Proportional to 8,415,936.36, 11,613,409.56 and 4,744,983.96
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Solution
The fourth proportional to 8,415,936.36, 11,613,409.56 and 4,744,983.96 is: 6,547,749.38
Step by Step Solution
- Step 1: Write the proportion equation
8,415,936.36 : 11,613,409.56 = 4,744,983.96 : x - Step 2: Convert to fraction form
8,415,936.36/11,613,409.56 = 4,744,983.96/x - Step 3: Cross multiply
8,415,936.36x = 11,613,409.56 × 4,744,983.96 - Step 4: Simplify right side
8,415,936.36x = 55,105,442,083,110.66 - Step 5: Solve for x
x = 55,105,442,083,110.66/8,415,936.36 - Step 6: Final answer
x = 6,547,749.38
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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.