Finding the Fourth Proportional to 136,937,669.70, 188,993,362.98 and 84,743,519.88
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Solution
The fourth proportional to 136,937,669.70, 188,993,362.98 and 84,743,519.88 is: 116,958,049.95
Step by Step Solution
- Step 1: Write the proportion equation
136,937,669.70 : 188,993,362.98 = 84,743,519.88 : x - Step 2: Convert to fraction form
136,937,669.70/188,993,362.98 = 84,743,519.88/x - Step 3: Cross multiply
136,937,669.70x = 188,993,362.98 × 84,743,519.88 - Step 4: Simplify right side
136,937,669.70x = 16,015,962,812,883,684 - Step 5: Solve for x
x = 16,015,962,812,883,684/136,937,669.70 - Step 6: Final answer
x = 116,958,049.95
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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.