Finding the Fourth Proportional to 177,147,207.20, 265,720,810.80 and 91,053,765.20
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Solution
The fourth proportional to 177,147,207.20, 265,720,810.80 and 91,053,765.20 is: 136,580,647.80
Step by Step Solution
- Step 1: Write the proportion equation
177,147,207.20 : 265,720,810.80 = 91,053,765.20 : x - Step 2: Convert to fraction form
177,147,207.20/265,720,810.80 = 91,053,765.20/x - Step 3: Cross multiply
177,147,207.20x = 265,720,810.80 × 91,053,765.20 - Step 4: Simplify right side
177,147,207.20x = 24,194,880,315,336,828 - Step 5: Solve for x
x = 24,194,880,315,336,828/177,147,207.20 - Step 6: Final answer
x = 136,580,647.80
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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.