Finding the Fourth Proportional to 4,979,608.65, 6,871,769.51 and 2,804,143.05
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Solution
The fourth proportional to 4,979,608.65, 6,871,769.51 and 2,804,143.05 is: 3,869,666.48
Step by Step Solution
- Step 1: Write the proportion equation
4,979,608.65 : 6,871,769.51 = 2,804,143.05 : x - Step 2: Convert to fraction form
4,979,608.65/6,871,769.51 = 2,804,143.05/x - Step 3: Cross multiply
4,979,608.65x = 6,871,769.51 × 2,804,143.05 - Step 4: Simplify right side
4,979,608.65x = 19,269,424,698,647.69 - Step 5: Solve for x
x = 19,269,424,698,647.69/4,979,608.65 - Step 6: Final answer
x = 3,869,666.48
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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.