Finding the Fourth Proportional to 136,845,183.32, 188,844,847.98 and 74,119,720.76
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Solution
The fourth proportional to 136,845,183.32, 188,844,847.98 and 74,119,720.76 is: 102,284,399.49
Step by Step Solution
- Step 1: Write the proportion equation
136,845,183.32 : 188,844,847.98 = 74,119,720.76 : x - Step 2: Convert to fraction form
136,845,183.32/188,844,847.98 = 74,119,720.76/x - Step 3: Cross multiply
136,845,183.32x = 188,844,847.98 × 74,119,720.76 - Step 4: Simplify right side
136,845,183.32x = 13,997,127,399,242,250 - Step 5: Solve for x
x = 13,997,127,399,242,250/136,845,183.32 - Step 6: Final answer
x = 102,284,399.49
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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.