Finding the Fourth Proportional to 405,447,279.04, 559,979,138.46 and 274,840,338.88
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Solution
The fourth proportional to 405,447,279.04, 559,979,138.46 and 274,840,338.88 is: 379,592,771.09
Step by Step Solution
- Step 1: Write the proportion equation
405,447,279.04 : 559,979,138.46 = 274,840,338.88 : x - Step 2: Convert to fraction form
405,447,279.04/559,979,138.46 = 274,840,338.88/x - Step 3: Cross multiply
405,447,279.04x = 559,979,138.46 × 274,840,338.88 - Step 4: Simplify right side
405,447,279.04x = 153,904,856,180,076,864 - Step 5: Solve for x
x = 153,904,856,180,076,864/405,447,279.04 - Step 6: Final answer
x = 379,592,771.09
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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.