Finding the Fourth Proportional to 3,889,579.96, 5,368,161.35 and 2,170,811.19
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Solution
The fourth proportional to 3,889,579.96, 5,368,161.35 and 2,170,811.19 is: 2,996,021.38
Step by Step Solution
- Step 1: Write the proportion equation
3,889,579.96 : 5,368,161.35 = 2,170,811.19 : x - Step 2: Convert to fraction form
3,889,579.96/5,368,161.35 = 2,170,811.19/x - Step 3: Cross multiply
3,889,579.96x = 5,368,161.35 × 2,170,811.19 - Step 4: Simplify right side
3,889,579.96x = 11,653,264,728,305.51 - Step 5: Solve for x
x = 11,653,264,728,305.51/3,889,579.96 - Step 6: Final answer
x = 2,996,021.38
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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.