Finding the Fourth Proportional to 512,453,211.80, 768,679,817.70 and 236,103,891.80
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Solution
The fourth proportional to 512,453,211.80, 768,679,817.70 and 236,103,891.80 is: 354,155,837.70
Step by Step Solution
- Step 1: Write the proportion equation
512,453,211.80 : 768,679,817.70 = 236,103,891.80 : x - Step 2: Convert to fraction form
512,453,211.80/768,679,817.70 = 236,103,891.80/x - Step 3: Cross multiply
512,453,211.80x = 768,679,817.70 × 236,103,891.80 - Step 4: Simplify right side
512,453,211.80x = 181,488,296,507,084,544 - Step 5: Solve for x
x = 181,488,296,507,084,544/512,453,211.80 - Step 6: Final answer
x = 354,155,837.70
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1.5x scale
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.