Finding the Fourth Proportional to 87,379,850.63, 120,583,946.69 and 48,221,347.38
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Solution
The fourth proportional to 87,379,850.63, 120,583,946.69 and 48,221,347.38 is: 66,545,322.98
Step by Step Solution
- Step 1: Write the proportion equation
87,379,850.63 : 120,583,946.69 = 48,221,347.38 : x - Step 2: Convert to fraction form
87,379,850.63/120,583,946.69 = 48,221,347.38/x - Step 3: Cross multiply
87,379,850.63x = 120,583,946.69 × 48,221,347.38 - Step 4: Simplify right side
87,379,850.63x = 5,814,720,381,548,785 - Step 5: Solve for x
x = 5,814,720,381,548,785/87,379,850.63 - Step 6: Final answer
x = 66,545,322.98
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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.