Finding the Fourth Proportional to 87,216,452.85, 120,363,989.75 and 48,058,182.21
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Solution
The fourth proportional to 87,216,452.85, 120,363,989.75 and 48,058,182.21 is: 66,323,203.50
Step by Step Solution
- Step 1: Write the proportion equation
87,216,452.85 : 120,363,989.75 = 48,058,182.21 : x - Step 2: Convert to fraction form
87,216,452.85/120,363,989.75 = 48,058,182.21/x - Step 3: Cross multiply
87,216,452.85x = 120,363,989.75 × 48,058,182.21 - Step 4: Simplify right side
87,216,452.85x = 5,784,474,550,928,072 - Step 5: Solve for x
x = 5,784,474,550,928,072/87,216,452.85 - Step 6: Final answer
x = 66,323,203.50
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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.