Finding the Fourth Proportional to 3,917,987.08, 5,861,775.27 and 3,434,578.75
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Solution
The fourth proportional to 3,917,987.08, 5,861,775.27 and 3,434,578.75 is: 5,138,538.84
Step by Step Solution
- Step 1: Write the proportion equation
3,917,987.08 : 5,861,775.27 = 3,434,578.75 : x - Step 2: Convert to fraction form
3,917,987.08/5,861,775.27 = 3,434,578.75/x - Step 3: Cross multiply
3,917,987.08x = 5,861,775.27 × 3,434,578.75 - Step 4: Simplify right side
3,917,987.08x = 20,132,728,779,617.51 - Step 5: Solve for x
x = 20,132,728,779,617.51/3,917,987.08 - Step 6: Final answer
x = 5,138,538.84
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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.