Finding the Fourth Proportional to 113,944,192.80, 157,086,812.84 and 72,107,446.56
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Solution
The fourth proportional to 113,944,192.80, 157,086,812.84 and 72,107,446.56 is: 99,409,444.96
Step by Step Solution
- Step 1: Write the proportion equation
113,944,192.80 : 157,086,812.84 = 72,107,446.56 : x - Step 2: Convert to fraction form
113,944,192.80/157,086,812.84 = 72,107,446.56/x - Step 3: Cross multiply
113,944,192.80x = 157,086,812.84 × 72,107,446.56 - Step 4: Simplify right side
113,944,192.80x = 11,327,128,962,141,022 - Step 5: Solve for x
x = 11,327,128,962,141,022/113,944,192.80 - Step 6: Final answer
x = 99,409,444.96
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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.