Finding the Fourth Proportional to 402,389,609.80, 603,584,414.70 and 364,125,857.80
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Solution
The fourth proportional to 402,389,609.80, 603,584,414.70 and 364,125,857.80 is: 546,188,786.70
Step by Step Solution
- Step 1: Write the proportion equation
402,389,609.80 : 603,584,414.70 = 364,125,857.80 : x - Step 2: Convert to fraction form
402,389,609.80/603,584,414.70 = 364,125,857.80/x - Step 3: Cross multiply
402,389,609.80x = 603,584,414.70 × 364,125,857.80 - Step 4: Simplify right side
402,389,609.80x = 219,780,692,757,348,448 - Step 5: Solve for x
x = 219,780,692,757,348,448/402,389,609.80 - Step 6: Final answer
x = 546,188,786.70
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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.