Finding the Fourth Proportional to 314,929,137.70, 472,393,706.55 and 161,874,129.70
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Solution
The fourth proportional to 314,929,137.70, 472,393,706.55 and 161,874,129.70 is: 242,811,194.55
Step by Step Solution
- Step 1: Write the proportion equation
314,929,137.70 : 472,393,706.55 = 161,874,129.70 : x - Step 2: Convert to fraction form
314,929,137.70/472,393,706.55 = 161,874,129.70/x - Step 3: Cross multiply
314,929,137.70x = 472,393,706.55 × 161,874,129.70 - Step 4: Simplify right side
314,929,137.70x = 76,468,320,123,538,432 - Step 5: Solve for x
x = 76,468,320,123,538,432/314,929,137.70 - Step 6: Final answer
x = 242,811,194.55
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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.