Finding the Fourth Proportional to 177,161,379.80, 265,742,069.70 and 81,609,891.80
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Solution
The fourth proportional to 177,161,379.80, 265,742,069.70 and 81,609,891.80 is: 122,414,837.70
Step by Step Solution
- Step 1: Write the proportion equation
177,161,379.80 : 265,742,069.70 = 81,609,891.80 : x - Step 2: Convert to fraction form
177,161,379.80/265,742,069.70 = 81,609,891.80/x - Step 3: Cross multiply
177,161,379.80x = 265,742,069.70 × 81,609,891.80 - Step 4: Simplify right side
177,161,379.80x = 21,687,181,554,925,056 - Step 5: Solve for x
x = 21,687,181,554,925,056/177,161,379.80 - Step 6: Final answer
x = 122,414,837.70
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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.