Finding the Fourth Proportional to 251,492,105.98, 347,059,122.94 and 139,980,553.70
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Solution
The fourth proportional to 251,492,105.98, 347,059,122.94 and 139,980,553.70 is: 193,173,173.39
Step by Step Solution
- Step 1: Write the proportion equation
251,492,105.98 : 347,059,122.94 = 139,980,553.70 : x - Step 2: Convert to fraction form
251,492,105.98/347,059,122.94 = 139,980,553.70/x - Step 3: Cross multiply
251,492,105.98x = 347,059,122.94 × 139,980,553.70 - Step 4: Simplify right side
251,492,105.98x = 48,581,528,193,692,320 - Step 5: Solve for x
x = 48,581,528,193,692,320/251,492,105.98 - Step 6: Final answer
x = 193,173,173.39
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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.