Finding the Fourth Proportional to 3,925,722.48, 5,417,139.54 and 2,271,583.68
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Solution
The fourth proportional to 3,925,722.48, 5,417,139.54 and 2,271,583.68 is: 3,134,578.62
Step by Step Solution
- Step 1: Write the proportion equation
3,925,722.48 : 5,417,139.54 = 2,271,583.68 : x - Step 2: Convert to fraction form
3,925,722.48/5,417,139.54 = 2,271,583.68/x - Step 3: Cross multiply
3,925,722.48x = 5,417,139.54 × 2,271,583.68 - Step 4: Simplify right side
3,925,722.48x = 12,305,485,771,346.71 - Step 5: Solve for x
x = 12,305,485,771,346.71/3,925,722.48 - Step 6: Final answer
x = 3,134,578.62
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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.