Finding the Fourth Proportional to 11,821,643.36, 16,313,497.91 and 6,930,123.39
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Solution
The fourth proportional to 11,821,643.36, 16,313,497.91 and 6,930,123.39 is: 9,563,353.41
Step by Step Solution
- Step 1: Write the proportion equation
11,821,643.36 : 16,313,497.91 = 6,930,123.39 : x - Step 2: Convert to fraction form
11,821,643.36/16,313,497.91 = 6,930,123.39/x - Step 3: Cross multiply
11,821,643.36x = 16,313,497.91 × 6,930,123.39 - Step 4: Simplify right side
11,821,643.36x = 113,054,553,322,589 - Step 5: Solve for x
x = 113,054,553,322,589/11,821,643.36 - Step 6: Final answer
x = 9,563,353.41
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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.