Finding the Fourth Proportional to 212,127,601.20, 318,204,850.82 and 66,566,907.74
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Solution
The fourth proportional to 212,127,601.20, 318,204,850.82 and 66,566,907.74 is: 99,854,581.98
Step by Step Solution
- Step 1: Write the proportion equation
212,127,601.20 : 318,204,850.82 = 66,566,907.74 : x - Step 2: Convert to fraction form
212,127,601.20/318,204,850.82 = 66,566,907.74/x - Step 3: Cross multiply
212,127,601.20x = 318,204,850.82 × 66,566,907.74 - Step 4: Simplify right side
212,127,601.20x = 21,181,912,945,031,544 - Step 5: Solve for x
x = 21,181,912,945,031,544/212,127,601.20 - Step 6: Final answer
x = 99,854,581.98
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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.