Finding the Fourth Proportional to 208,104,731.74, 311,961,571.60 and 69,833,367.47
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Solution
The fourth proportional to 208,104,731.74, 311,961,571.60 and 69,833,367.47 is: 104,684,438.86
Step by Step Solution
- Step 1: Write the proportion equation
208,104,731.74 : 311,961,571.60 = 69,833,367.47 : x - Step 2: Convert to fraction form
208,104,731.74/311,961,571.60 = 69,833,367.47/x - Step 3: Cross multiply
208,104,731.74x = 311,961,571.60 × 69,833,367.47 - Step 4: Simplify right side
208,104,731.74x = 21,785,327,065,895,396 - Step 5: Solve for x
x = 21,785,327,065,895,396/208,104,731.74 - Step 6: Final answer
x = 104,684,438.86
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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.