Finding the Fourth Proportional to 5,164,591.76, 7,127,031.72 and 2,872,703.12
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Solution
The fourth proportional to 5,164,591.76, 7,127,031.72 and 2,872,703.12 is: 3,964,271.95
Step by Step Solution
- Step 1: Write the proportion equation
5,164,591.76 : 7,127,031.72 = 2,872,703.12 : x - Step 2: Convert to fraction form
5,164,591.76/7,127,031.72 = 2,872,703.12/x - Step 3: Cross multiply
5,164,591.76x = 7,127,031.72 × 2,872,703.12 - Step 4: Simplify right side
5,164,591.76x = 20,473,846,258,382.96 - Step 5: Solve for x
x = 20,473,846,258,382.96/5,164,591.76 - Step 6: Final answer
x = 3,964,271.95
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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.