Finding the Fourth Proportional to 81,908,503.83, 122,863,215.03 and 27,320,939.49
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Solution
The fourth proportional to 81,908,503.83, 122,863,215.03 and 27,320,939.49 is: 40,981,562.44
Step by Step Solution
- Step 1: Write the proportion equation
81,908,503.83 : 122,863,215.03 = 27,320,939.49 : x - Step 2: Convert to fraction form
81,908,503.83/122,863,215.03 = 27,320,939.49/x - Step 3: Cross multiply
81,908,503.83x = 122,863,215.03 × 27,320,939.49 - Step 4: Simplify right side
81,908,503.83x = 3,356,738,463,624,869.50 - Step 5: Solve for x
x = 3,356,738,463,624,869.50/81,908,503.83 - Step 6: Final answer
x = 40,981,562.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.