Finding the Fourth Proportional to 212,650,843.05, 318,497,967.68 and 126,557,401.05
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Solution
The fourth proportional to 212,650,843.05, 318,497,967.68 and 126,557,401.05 is: 189,551,447.11
Step by Step Solution
- Step 1: Write the proportion equation
212,650,843.05 : 318,497,967.68 = 126,557,401.05 : x - Step 2: Convert to fraction form
212,650,843.05/318,497,967.68 = 126,557,401.05/x - Step 3: Cross multiply
212,650,843.05x = 318,497,967.68 × 126,557,401.05 - Step 4: Simplify right side
212,650,843.05x = 40,308,275,028,654,912 - Step 5: Solve for x
x = 40,308,275,028,654,912/212,650,843.05 - Step 6: Final answer
x = 189,551,447.11
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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.