Finding the Fourth Proportional to 5,148,072.97, 7,719,081.57 and 1,953,423.65
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Solution
The fourth proportional to 5,148,072.97, 7,719,081.57 and 1,953,423.65 is: 2,928,986.56
Step by Step Solution
- Step 1: Write the proportion equation
5,148,072.97 : 7,719,081.57 = 1,953,423.65 : x - Step 2: Convert to fraction form
5,148,072.97/7,719,081.57 = 1,953,423.65/x - Step 3: Cross multiply
5,148,072.97x = 7,719,081.57 × 1,953,423.65 - Step 4: Simplify right side
5,148,072.97x = 15,078,636,514,414.84 - Step 5: Solve for x
x = 15,078,636,514,414.84/5,148,072.97 - Step 6: Final answer
x = 2,928,986.56
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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.