Finding the Fourth Proportional to 5,120,162.10, 7,680,537.96 and 1,925,315.97
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Solution
The fourth proportional to 5,120,162.10, 7,680,537.96 and 1,925,315.97 is: 2,888,084.81
Step by Step Solution
- Step 1: Write the proportion equation
5,120,162.10 : 7,680,537.96 = 1,925,315.97 : x - Step 2: Convert to fraction form
5,120,162.10/7,680,537.96 = 1,925,315.97/x - Step 3: Cross multiply
5,120,162.10x = 7,680,537.96 × 1,925,315.97 - Step 4: Simplify right side
5,120,162.10x = 14,787,462,392,579.22 - Step 5: Solve for x
x = 14,787,462,392,579.22/5,120,162.10 - Step 6: Final answer
x = 2,888,084.81
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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.