Finding the Fourth Proportional to 213,099,921.09, 319,658,850.18 and 67,539,226.28
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Solution
The fourth proportional to 213,099,921.09, 319,658,850.18 and 67,539,226.28 is: 101,311,681.88
Step by Step Solution
- Step 1: Write the proportion equation
213,099,921.09 : 319,658,850.18 = 67,539,226.28 : x - Step 2: Convert to fraction form
213,099,921.09/319,658,850.18 = 67,539,226.28/x - Step 3: Cross multiply
213,099,921.09x = 319,658,850.18 × 67,539,226.28 - Step 4: Simplify right side
213,099,921.09x = 21,589,511,413,113,348 - Step 5: Solve for x
x = 21,589,511,413,113,348/213,099,921.09 - Step 6: Final answer
x = 101,311,681.88
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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.