Finding the Fourth Proportional to 251,492,115.18, 347,059,135.63 and 139,980,562.90
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Solution
The fourth proportional to 251,492,115.18, 347,059,135.63 and 139,980,562.90 is: 193,173,186.09
Step by Step Solution
- Step 1: Write the proportion equation
251,492,115.18 : 347,059,135.63 = 139,980,562.90 : x - Step 2: Convert to fraction form
251,492,115.18/347,059,135.63 = 139,980,562.90/x - Step 3: Cross multiply
251,492,115.18x = 347,059,135.63 × 139,980,562.90 - Step 4: Simplify right side
251,492,115.18x = 48,581,533,165,074,848 - Step 5: Solve for x
x = 48,581,533,165,074,848/251,492,115.18 - Step 6: Final answer
x = 193,173,186.09
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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.