Finding the Fourth Proportional to 74,618,187.68, 102,970,380.44 and 41,576,729.60
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Solution
The fourth proportional to 74,618,187.68, 102,970,380.44 and 41,576,729.60 is: 57,374,372.09
Step by Step Solution
- Step 1: Write the proportion equation
74,618,187.68 : 102,970,380.44 = 41,576,729.60 : x - Step 2: Convert to fraction form
74,618,187.68/102,970,380.44 = 41,576,729.60/x - Step 3: Cross multiply
74,618,187.68x = 102,970,380.44 × 41,576,729.60 - Step 4: Simplify right side
74,618,187.68x = 4,281,171,664,363,009 - Step 5: Solve for x
x = 4,281,171,664,363,009/74,618,187.68 - Step 6: Final answer
x = 57,374,372.09
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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.