Finding the Fourth Proportional to 3,941,498.70, 5,439,276.18 and 2,130,662.70
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Solution
The fourth proportional to 3,941,498.70, 5,439,276.18 and 2,130,662.70 is: 2,940,318.84
Step by Step Solution
- Step 1: Write the proportion equation
3,941,498.70 : 5,439,276.18 = 2,130,662.70 : x - Step 2: Convert to fraction form
3,941,498.70/5,439,276.18 = 2,130,662.70/x - Step 3: Cross multiply
3,941,498.70x = 5,439,276.18 × 2,130,662.70 - Step 4: Simplify right side
3,941,498.70x = 11,589,262,871,724.49 - Step 5: Solve for x
x = 11,589,262,871,724.49/3,941,498.70 - Step 6: Final answer
x = 2,940,318.84
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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.