Finding the Fourth Proportional to 445,841,279.26, 668,496,987.80 and 169,512,720.78
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Solution
The fourth proportional to 445,841,279.26, 668,496,987.80 and 169,512,720.78 is: 254,168,352.07
Step by Step Solution
- Step 1: Write the proportion equation
445,841,279.26 : 668,496,987.80 = 169,512,720.78 : x - Step 2: Convert to fraction form
445,841,279.26/668,496,987.80 = 169,512,720.78/x - Step 3: Cross multiply
445,841,279.26x = 668,496,987.80 × 169,512,720.78 - Step 4: Simplify right side
445,841,279.26x = 113,318,743,235,212,464 - Step 5: Solve for x
x = 113,318,743,235,212,464/445,841,279.26 - Step 6: Final answer
x = 254,168,352.07
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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.