Finding the Fourth Proportional to 143,178,929.29, 197,581,361.02 and 87,517,546.12
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Solution
The fourth proportional to 143,178,929.29, 197,581,361.02 and 87,517,546.12 is: 120,770,814.26
Step by Step Solution
- Step 1: Write the proportion equation
143,178,929.29 : 197,581,361.02 = 87,517,546.12 : x - Step 2: Convert to fraction form
143,178,929.29/197,581,361.02 = 87,517,546.12/x - Step 3: Cross multiply
143,178,929.29x = 197,581,361.02 × 87,517,546.12 - Step 4: Simplify right side
143,178,929.29x = 17,291,835,875,520,222 - Step 5: Solve for x
x = 17,291,835,875,520,222/143,178,929.29 - Step 6: Final answer
x = 120,770,814.26
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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.