Finding the Fourth Proportional to 79,232,010.20, 118,848,015.30 and 68,272,515.80
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Solution
The fourth proportional to 79,232,010.20, 118,848,015.30 and 68,272,515.80 is: 102,408,773.70
Step by Step Solution
- Step 1: Write the proportion equation
79,232,010.20 : 118,848,015.30 = 68,272,515.80 : x - Step 2: Convert to fraction form
79,232,010.20/118,848,015.30 = 68,272,515.80/x - Step 3: Cross multiply
79,232,010.20x = 118,848,015.30 × 68,272,515.80 - Step 4: Simplify right side
79,232,010.20x = 8,114,053,002,367,891 - Step 5: Solve for x
x = 8,114,053,002,367,891/79,232,010.20 - Step 6: Final answer
x = 102,408,773.70
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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.