Finding the Fourth Proportional to 55,156,611.87, 76,115,195.82 and 30,379,106.14
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Solution
The fourth proportional to 55,156,611.87, 76,115,195.82 and 30,379,106.14 is: 41,922,655.04
Step by Step Solution
- Step 1: Write the proportion equation
55,156,611.87 : 76,115,195.82 = 30,379,106.14 : x - Step 2: Convert to fraction form
55,156,611.87/76,115,195.82 = 30,379,106.14/x - Step 3: Cross multiply
55,156,611.87x = 76,115,195.82 × 30,379,106.14 - Step 4: Simplify right side
55,156,611.87x = 2,312,311,612,530,769 - Step 5: Solve for x
x = 2,312,311,612,530,769/55,156,611.87 - Step 6: Final answer
x = 41,922,655.04
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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.