Finding the Fourth Proportional to 177,147,811.80, 265,721,717.70 and 91,054,369.80
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Solution
The fourth proportional to 177,147,811.80, 265,721,717.70 and 91,054,369.80 is: 136,581,554.70
Step by Step Solution
- Step 1: Write the proportion equation
177,147,811.80 : 265,721,717.70 = 91,054,369.80 : x - Step 2: Convert to fraction form
177,147,811.80/265,721,717.70 = 91,054,369.80/x - Step 3: Cross multiply
177,147,811.80x = 265,721,717.70 × 91,054,369.80 - Step 4: Simplify right side
177,147,811.80x = 24,195,123,547,347,004 - Step 5: Solve for x
x = 24,195,123,547,347,004/177,147,811.80 - Step 6: Final answer
x = 136,581,554.70
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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.