Finding the Fourth Proportional to 4,979,441.67, 6,871,561.74 and 2,804,010.90
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Solution
The fourth proportional to 4,979,441.67, 6,871,561.74 and 2,804,010.90 is: 3,869,496.88
Step by Step Solution
- Step 1: Write the proportion equation
4,979,441.67 : 6,871,561.74 = 2,804,010.90 : x - Step 2: Convert to fraction form
4,979,441.67/6,871,561.74 = 2,804,010.90/x - Step 3: Cross multiply
4,979,441.67x = 6,871,561.74 × 2,804,010.90 - Step 4: Simplify right side
4,979,441.67x = 19,267,934,018,982.96 - Step 5: Solve for x
x = 19,267,934,018,982.96/4,979,441.67 - Step 6: Final answer
x = 3,869,496.88
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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.