Finding the Fourth Proportional to 12,176,405.20, 18,265,460.06 and 4,889,863.84
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Solution
The fourth proportional to 12,176,405.20, 18,265,460.06 and 4,889,863.84 is: 7,335,138.01
Step by Step Solution
- Step 1: Write the proportion equation
12,176,405.20 : 18,265,460.06 = 4,889,863.84 : x - Step 2: Convert to fraction form
12,176,405.20/18,265,460.06 = 4,889,863.84/x - Step 3: Cross multiply
12,176,405.20x = 18,265,460.06 × 4,889,863.84 - Step 4: Simplify right side
12,176,405.20x = 89,315,612,668,358.22 - Step 5: Solve for x
x = 89,315,612,668,358.22/12,176,405.20 - Step 6: Final answer
x = 7,335,138.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.