Finding the Fourth Proportional to 440,110,135.40, 660,165,203.10 and 133,362,390.20
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Solution
The fourth proportional to 440,110,135.40, 660,165,203.10 and 133,362,390.20 is: 200,043,585.30
Step by Step Solution
- Step 1: Write the proportion equation
440,110,135.40 : 660,165,203.10 = 133,362,390.20 : x - Step 2: Convert to fraction form
440,110,135.40/660,165,203.10 = 133,362,390.20/x - Step 3: Cross multiply
440,110,135.40x = 660,165,203.10 × 133,362,390.20 - Step 4: Simplify right side
440,110,135.40x = 88,041,209,412,284,448 - Step 5: Solve for x
x = 88,041,209,412,284,448/440,110,135.40 - Step 6: Final answer
x = 200,043,585.30
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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.