Finding the Fourth Proportional to 245,471,193.99, 338,757,429.35 and 133,969,186.40
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Solution
The fourth proportional to 245,471,193.99, 338,757,429.35 and 133,969,186.40 is: 184,881,396.70
Step by Step Solution
- Step 1: Write the proportion equation
245,471,193.99 : 338,757,429.35 = 133,969,186.40 : x - Step 2: Convert to fraction form
245,471,193.99/338,757,429.35 = 133,969,186.40/x - Step 3: Cross multiply
245,471,193.99x = 338,757,429.35 × 133,969,186.40 - Step 4: Simplify right side
245,471,193.99x = 45,383,057,195,616,120 - Step 5: Solve for x
x = 45,383,057,195,616,120/245,471,193.99 - Step 6: Final answer
x = 184,881,396.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.