Finding the Fourth Proportional to 384,912,207.80, 577,368,311.70 and 231,857,199.80
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Solution
The fourth proportional to 384,912,207.80, 577,368,311.70 and 231,857,199.80 is: 347,785,799.70
Step by Step Solution
- Step 1: Write the proportion equation
384,912,207.80 : 577,368,311.70 = 231,857,199.80 : x - Step 2: Convert to fraction form
384,912,207.80/577,368,311.70 = 231,857,199.80/x - Step 3: Cross multiply
384,912,207.80x = 577,368,311.70 × 231,857,199.80 - Step 4: Simplify right side
384,912,207.80x = 133,867,000,004,015,600 - Step 5: Solve for x
x = 133,867,000,004,015,600/384,912,207.80 - Step 6: Final answer
x = 347,785,799.70
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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.