Finding the Fourth Proportional to 87,163,804.87, 120,291,490.86 and 48,005,571.23
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Solution
The fourth proportional to 87,163,804.87, 120,291,490.86 and 48,005,571.23 is: 66,250,684.47
Step by Step Solution
- Step 1: Write the proportion equation
87,163,804.87 : 120,291,490.86 = 48,005,571.23 : x - Step 2: Convert to fraction form
87,163,804.87/120,291,490.86 = 48,005,571.23/x - Step 3: Cross multiply
87,163,804.87x = 120,291,490.86 × 48,005,571.23 - Step 4: Simplify right side
87,163,804.87x = 5,774,661,733,143,353 - Step 5: Solve for x
x = 5,774,661,733,143,353/87,163,804.87 - Step 6: Final answer
x = 66,250,684.47
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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.