Finding the Fourth Proportional to 355,902,968.20, 533,854,452.30 and 279,461,777.80
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Solution
The fourth proportional to 355,902,968.20, 533,854,452.30 and 279,461,777.80 is: 419,192,666.70
Step by Step Solution
- Step 1: Write the proportion equation
355,902,968.20 : 533,854,452.30 = 279,461,777.80 : x - Step 2: Convert to fraction form
355,902,968.20/533,854,452.30 = 279,461,777.80/x - Step 3: Cross multiply
355,902,968.20x = 533,854,452.30 × 279,461,777.80 - Step 4: Simplify right side
355,902,968.20x = 149,191,914,326,203,296 - Step 5: Solve for x
x = 149,191,914,326,203,296/355,902,968.20 - Step 6: Final answer
x = 419,192,666.70
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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.