Finding the Fourth Proportional to 67,143,758.14, 100,715,631.66 and 18,621,611.31
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Solution
The fourth proportional to 67,143,758.14, 100,715,631.66 and 18,621,611.31 is: 27,932,415.43
Step by Step Solution
- Step 1: Write the proportion equation
67,143,758.14 : 100,715,631.66 = 18,621,611.31 : x - Step 2: Convert to fraction form
67,143,758.14/100,715,631.66 = 18,621,611.31/x - Step 3: Cross multiply
67,143,758.14x = 100,715,631.66 × 18,621,611.31 - Step 4: Simplify right side
67,143,758.14x = 1,875,487,345,708,121.25 - Step 5: Solve for x
x = 1,875,487,345,708,121.25/67,143,758.14 - Step 6: Final answer
x = 27,932,415.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.