Finding the Fourth Proportional to 11,057,382.36, 15,265,209.78 and 7,638,022.44
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Solution
The fourth proportional to 11,057,382.36, 15,265,209.78 and 7,638,022.44 is: 10,544,630.82
Step by Step Solution
- Step 1: Write the proportion equation
11,057,382.36 : 15,265,209.78 = 7,638,022.44 : x - Step 2: Convert to fraction form
11,057,382.36/15,265,209.78 = 7,638,022.44/x - Step 3: Cross multiply
11,057,382.36x = 15,265,209.78 × 7,638,022.44 - Step 4: Simplify right side
11,057,382.36x = 116,596,014,850,947.47 - Step 5: Solve for x
x = 116,596,014,850,947.47/11,057,382.36 - Step 6: Final answer
x = 10,544,630.82
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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.