Finding the Fourth Proportional to 177,412,935.80, 266,119,403.70 and 81,861,447.80
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Solution
The fourth proportional to 177,412,935.80, 266,119,403.70 and 81,861,447.80 is: 122,792,171.70
Step by Step Solution
- Step 1: Write the proportion equation
177,412,935.80 : 266,119,403.70 = 81,861,447.80 : x - Step 2: Convert to fraction form
177,412,935.80/266,119,403.70 = 81,861,447.80/x - Step 3: Cross multiply
177,412,935.80x = 266,119,403.70 × 81,861,447.80 - Step 4: Simplify right side
177,412,935.80x = 21,784,919,674,554,676 - Step 5: Solve for x
x = 21,784,919,674,554,676/177,412,935.80 - Step 6: Final answer
x = 122,792,171.70
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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.