Finding the Fourth Proportional to 136,534,593.06, 188,436,171.83 and 77,008,108.05
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Solution
The fourth proportional to 136,534,593.06, 188,436,171.83 and 77,008,108.05 is: 106,281,585.90
Step by Step Solution
- Step 1: Write the proportion equation
136,534,593.06 : 188,436,171.83 = 77,008,108.05 : x - Step 2: Convert to fraction form
136,534,593.06/188,436,171.83 = 77,008,108.05/x - Step 3: Cross multiply
136,534,593.06x = 188,436,171.83 × 77,008,108.05 - Step 4: Simplify right side
136,534,593.06x = 14,511,113,080,427,964 - Step 5: Solve for x
x = 14,511,113,080,427,964/136,534,593.06 - Step 6: Final answer
x = 106,281,585.90
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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.