Finding the Fourth Proportional to 237,861,174.80, 356,791,762.20 and 212,918,877.20
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Solution
The fourth proportional to 237,861,174.80, 356,791,762.20 and 212,918,877.20 is: 319,378,315.80
Step by Step Solution
- Step 1: Write the proportion equation
237,861,174.80 : 356,791,762.20 = 212,918,877.20 : x - Step 2: Convert to fraction form
237,861,174.80/356,791,762.20 = 212,918,877.20/x - Step 3: Cross multiply
237,861,174.80x = 356,791,762.20 × 212,918,877.20 - Step 4: Simplify right side
237,861,174.80x = 75,967,701,401,833,392 - Step 5: Solve for x
x = 75,967,701,401,833,392/237,861,174.80 - Step 6: Final answer
x = 319,378,315.80
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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.