Finding the Fourth Proportional to 3,867,921.96, 5,337,876.35 and 2,319,435.74
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Solution
The fourth proportional to 3,867,921.96, 5,337,876.35 and 2,319,435.74 is: 3,200,907.71
Step by Step Solution
- Step 1: Write the proportion equation
3,867,921.96 : 5,337,876.35 = 2,319,435.74 : x - Step 2: Convert to fraction form
3,867,921.96/5,337,876.35 = 2,319,435.74/x - Step 3: Cross multiply
3,867,921.96x = 5,337,876.35 × 2,319,435.74 - Step 4: Simplify right side
3,867,921.96x = 12,380,861,201,034.03 - Step 5: Solve for x
x = 12,380,861,201,034.03/3,867,921.96 - Step 6: Final answer
x = 3,200,907.71
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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.