Finding the Fourth Proportional to 178,839,425.80, 268,259,138.70 and 161,833,313.80
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Solution
The fourth proportional to 178,839,425.80, 268,259,138.70 and 161,833,313.80 is: 242,749,970.70
Step by Step Solution
- Step 1: Write the proportion equation
178,839,425.80 : 268,259,138.70 = 161,833,313.80 : x - Step 2: Convert to fraction form
178,839,425.80/268,259,138.70 = 161,833,313.80/x - Step 3: Cross multiply
178,839,425.80x = 268,259,138.70 × 161,833,313.80 - Step 4: Simplify right side
178,839,425.80x = 43,413,265,372,954,824 - Step 5: Solve for x
x = 43,413,265,372,954,824/178,839,425.80 - Step 6: Final answer
x = 242,749,970.70
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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.