Finding the Fourth Proportional to 5,725,891.62, 7,901,785.98 and 3,112,407.18
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Solution
The fourth proportional to 5,725,891.62, 7,901,785.98 and 3,112,407.18 is: 4,295,152.10
Step by Step Solution
- Step 1: Write the proportion equation
5,725,891.62 : 7,901,785.98 = 3,112,407.18 : x - Step 2: Convert to fraction form
5,725,891.62/7,901,785.98 = 3,112,407.18/x - Step 3: Cross multiply
5,725,891.62x = 7,901,785.98 × 3,112,407.18 - Step 4: Simplify right side
5,725,891.62x = 24,593,575,418,975.34 - Step 5: Solve for x
x = 24,593,575,418,975.34/5,725,891.62 - Step 6: Final answer
x = 4,295,152.10
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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.