Finding the Fourth Proportional to 272,967,775.20, 409,451,662.80 and 88,734,895.20
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Solution
The fourth proportional to 272,967,775.20, 409,451,662.80 and 88,734,895.20 is: 133,102,342.80
Step by Step Solution
- Step 1: Write the proportion equation
272,967,775.20 : 409,451,662.80 = 88,734,895.20 : x - Step 2: Convert to fraction form
272,967,775.20/409,451,662.80 = 88,734,895.20/x - Step 3: Cross multiply
272,967,775.20x = 409,451,662.80 × 88,734,895.20 - Step 4: Simplify right side
272,967,775.20x = 36,332,650,388,023,744 - Step 5: Solve for x
x = 36,332,650,388,023,744/272,967,775.20 - Step 6: Final answer
x = 133,102,342.80
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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.