Finding the Fourth Proportional to 3,886,858.12, 5,363,850.18 and 2,167,977.28
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Solution
The fourth proportional to 3,886,858.12, 5,363,850.18 and 2,167,977.28 is: 2,991,800.82
Step by Step Solution
- Step 1: Write the proportion equation
3,886,858.12 : 5,363,850.18 = 2,167,977.28 : x - Step 2: Convert to fraction form
3,886,858.12/5,363,850.18 = 2,167,977.28/x - Step 3: Cross multiply
3,886,858.12x = 5,363,850.18 × 2,167,977.28 - Step 4: Simplify right side
3,886,858.12x = 11,628,705,323,563.91 - Step 5: Solve for x
x = 11,628,705,323,563.91/3,886,858.12 - Step 6: Final answer
x = 2,991,800.82
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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.