Finding the Fourth Proportional to 331,857,496.80, 497,786,245.20 and 86,193,973.80
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Solution
The fourth proportional to 331,857,496.80, 497,786,245.20 and 86,193,973.80 is: 129,290,960.70
Step by Step Solution
- Step 1: Write the proportion equation
331,857,496.80 : 497,786,245.20 = 86,193,973.80 : x - Step 2: Convert to fraction form
331,857,496.80/497,786,245.20 = 86,193,973.80/x - Step 3: Cross multiply
331,857,496.80x = 497,786,245.20 × 86,193,973.80 - Step 4: Simplify right side
331,857,496.80x = 42,906,174,576,769,176 - Step 5: Solve for x
x = 42,906,174,576,769,176/331,857,496.80 - Step 6: Final answer
x = 129,290,960.70
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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.