Finding the Fourth Proportional to 3,890,226.08, 5,368,782.48 and 2,171,682.08
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Solution
The fourth proportional to 3,890,226.08, 5,368,782.48 and 2,171,682.08 is: 2,997,072.27
Step by Step Solution
- Step 1: Write the proportion equation
3,890,226.08 : 5,368,782.48 = 2,171,682.08 : x - Step 2: Convert to fraction form
3,890,226.08/5,368,782.48 = 2,171,682.08/x - Step 3: Cross multiply
3,890,226.08x = 5,368,782.48 × 2,171,682.08 - Step 4: Simplify right side
3,890,226.08x = 11,659,288,703,233.96 - Step 5: Solve for x
x = 11,659,288,703,233.96/3,890,226.08 - Step 6: Final answer
x = 2,997,072.27
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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.