Finding the Fourth Proportional to 4,871,659.70, 6,722,141.42 and 2,806,271.84
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Solution
The fourth proportional to 4,871,659.70, 6,722,141.42 and 2,806,271.84 is: 3,872,223.70
Step by Step Solution
- Step 1: Write the proportion equation
4,871,659.70 : 6,722,141.42 = 2,806,271.84 : x - Step 2: Convert to fraction form
4,871,659.70/6,722,141.42 = 2,806,271.84/x - Step 3: Cross multiply
4,871,659.70x = 6,722,141.42 × 2,806,271.84 - Step 4: Simplify right side
4,871,659.70x = 18,864,156,171,443.61 - Step 5: Solve for x
x = 18,864,156,171,443.61/4,871,659.70 - Step 6: Final answer
x = 3,872,223.70
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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.