Finding the Fourth Proportional to 8,138,736.06, 12,192,142.53 and 4,719,840
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Solution
The fourth proportional to 8,138,736.06, 12,192,142.53 and 4,719,840 is: 7,070,503.52
Step by Step Solution
- Step 1: Write the proportion equation
8,138,736.06 : 12,192,142.53 = 4,719,840 : x - Step 2: Convert to fraction form
8,138,736.06/12,192,142.53 = 4,719,840/x - Step 3: Cross multiply
8,138,736.06x = 12,192,142.53 × 4,719,840 - Step 4: Simplify right side
8,138,736.06x = 57,544,961,998,795.20 - Step 5: Solve for x
x = 57,544,961,998,795.20/8,138,736.06 - Step 6: Final answer
x = 7,070,503.52
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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.