Finding the Fourth Proportional to 251,492,112.68, 347,059,132.18 and 139,980,560.40
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Solution
The fourth proportional to 251,492,112.68, 347,059,132.18 and 139,980,560.40 is: 193,173,182.64
Step by Step Solution
- Step 1: Write the proportion equation
251,492,112.68 : 347,059,132.18 = 139,980,560.40 : x - Step 2: Convert to fraction form
251,492,112.68/347,059,132.18 = 139,980,560.40/x - Step 3: Cross multiply
251,492,112.68x = 347,059,132.18 × 139,980,560.40 - Step 4: Simplify right side
251,492,112.68x = 48,581,531,814,494,080 - Step 5: Solve for x
x = 48,581,531,814,494,080/251,492,112.68 - Step 6: Final answer
x = 193,173,182.64
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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.