Finding the Fourth Proportional to 87,163,805.61, 120,291,491.90 and 48,005,571.98
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Solution
The fourth proportional to 87,163,805.61, 120,291,491.90 and 48,005,571.98 is: 66,250,685.50
Step by Step Solution
- Step 1: Write the proportion equation
87,163,805.61 : 120,291,491.90 = 48,005,571.98 : x - Step 2: Convert to fraction form
87,163,805.61/120,291,491.90 = 48,005,571.98/x - Step 3: Cross multiply
87,163,805.61x = 120,291,491.90 × 48,005,571.98 - Step 4: Simplify right side
87,163,805.61x = 5,774,661,872,145,552 - Step 5: Solve for x
x = 5,774,661,872,145,552/87,163,805.61 - Step 6: Final answer
x = 66,250,685.50
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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.