Finding the Fourth Proportional to 3,872,725.48, 5,344,331.58 and 2,130,357.38
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Solution
The fourth proportional to 3,872,725.48, 5,344,331.58 and 2,130,357.38 is: 2,939,876.92
Step by Step Solution
- Step 1: Write the proportion equation
3,872,725.48 : 5,344,331.58 = 2,130,357.38 : x - Step 2: Convert to fraction form
3,872,725.48/5,344,331.58 = 2,130,357.38/x - Step 3: Cross multiply
3,872,725.48x = 5,344,331.58 × 2,130,357.38 - Step 4: Simplify right side
3,872,725.48x = 11,385,336,234,999.57 - Step 5: Solve for x
x = 11,385,336,234,999.57/3,872,725.48 - Step 6: Final answer
x = 2,939,876.92
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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.