Finding the Fourth Proportional to 129,165,649.90, 193,694,603.90 and 40,511,379.32
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Solution
The fourth proportional to 129,165,649.90, 193,694,603.90 and 40,511,379.32 is: 60,750,172.95
Step by Step Solution
- Step 1: Write the proportion equation
129,165,649.90 : 193,694,603.90 = 40,511,379.32 : x - Step 2: Convert to fraction form
129,165,649.90/193,694,603.90 = 40,511,379.32/x - Step 3: Cross multiply
129,165,649.90x = 193,694,603.90 × 40,511,379.32 - Step 4: Simplify right side
129,165,649.90x = 7,846,835,570,830,052 - Step 5: Solve for x
x = 7,846,835,570,830,052/129,165,649.90 - Step 6: Final answer
x = 60,750,172.95
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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.