Finding the Fourth Proportional to 45,093,248.20, 67,639,080.66 and 31,247,438.68
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Solution
The fourth proportional to 45,093,248.20, 67,639,080.66 and 31,247,438.68 is: 46,870,609.45
Step by Step Solution
- Step 1: Write the proportion equation
45,093,248.20 : 67,639,080.66 = 31,247,438.68 : x - Step 2: Convert to fraction form
45,093,248.20/67,639,080.66 = 31,247,438.68/x - Step 3: Cross multiply
45,093,248.20x = 67,639,080.66 × 31,247,438.68 - Step 4: Simplify right side
45,093,248.20x = 2,113,548,025,294,923.75 - Step 5: Solve for x
x = 2,113,548,025,294,923.75/45,093,248.20 - Step 6: Final answer
x = 46,870,609.45
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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.