Finding the Fourth Proportional to 3,848,416.16, 5,306,468.27 and 2,878,437.92
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Solution
The fourth proportional to 3,848,416.16, 5,306,468.27 and 2,878,437.92 is: 3,968,993.69
Step by Step Solution
- Step 1: Write the proportion equation
3,848,416.16 : 5,306,468.27 = 2,878,437.92 : x - Step 2: Convert to fraction form
3,848,416.16/5,306,468.27 = 2,878,437.92/x - Step 3: Cross multiply
3,848,416.16x = 5,306,468.27 × 2,878,437.92 - Step 4: Simplify right side
3,848,416.16x = 15,274,339,448,720.27 - Step 5: Solve for x
x = 15,274,339,448,720.27/3,848,416.16 - Step 6: Final answer
x = 3,968,993.69
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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.