Finding the Fourth Proportional to 331,924,268.11, 458,115,447.93 and 197,970,770.98
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Solution
The fourth proportional to 331,924,268.11, 458,115,447.93 and 197,970,770.98 is: 273,235,424.88
Step by Step Solution
- Step 1: Write the proportion equation
331,924,268.11 : 458,115,447.93 = 197,970,770.98 : x - Step 2: Convert to fraction form
331,924,268.11/458,115,447.93 = 197,970,770.98/x - Step 3: Cross multiply
331,924,268.11x = 458,115,447.93 × 197,970,770.98 - Step 4: Simplify right side
331,924,268.11x = 90,693,468,424,550,144 - Step 5: Solve for x
x = 90,693,468,424,550,144/331,924,268.11 - Step 6: Final answer
x = 273,235,424.88
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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.