Finding the Fourth Proportional to 216,513,159.40, 324,769,739.10 and 201,207,658.60
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Solution
The fourth proportional to 216,513,159.40, 324,769,739.10 and 201,207,658.60 is: 301,811,487.90
Step by Step Solution
- Step 1: Write the proportion equation
216,513,159.40 : 324,769,739.10 = 201,207,658.60 : x - Step 2: Convert to fraction form
216,513,159.40/324,769,739.10 = 201,207,658.60/x - Step 3: Cross multiply
216,513,159.40x = 324,769,739.10 × 201,207,658.60 - Step 4: Simplify right side
216,513,159.40x = 65,346,158,788,443,872 - Step 5: Solve for x
x = 65,346,158,788,443,872/216,513,159.40 - Step 6: Final answer
x = 301,811,487.90
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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.