Finding the Fourth Proportional to 3,911,368.70, 5,868,738.86 and 2,115,516.38
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Solution
The fourth proportional to 3,911,368.70, 5,868,738.86 and 2,115,516.38 is: 3,174,186.36
Step by Step Solution
- Step 1: Write the proportion equation
3,911,368.70 : 5,868,738.86 = 2,115,516.38 : x - Step 2: Convert to fraction form
3,911,368.70/5,868,738.86 = 2,115,516.38/x - Step 3: Cross multiply
3,911,368.70x = 5,868,738.86 × 2,115,516.38 - Step 4: Simplify right side
3,911,368.70x = 12,415,413,148,351.25 - Step 5: Solve for x
x = 12,415,413,148,351.25/3,911,368.70 - Step 6: Final answer
x = 3,174,186.36
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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.