Finding the Fourth Proportional to 13,412,627.13, 18,511,841.01 and 7,905,680.53
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Solution
The fourth proportional to 13,412,627.13, 18,511,841.01 and 7,905,680.53 is: 10,911,262.92
Step by Step Solution
- Step 1: Write the proportion equation
13,412,627.13 : 18,511,841.01 = 7,905,680.53 : x - Step 2: Convert to fraction form
13,412,627.13/18,511,841.01 = 7,905,680.53/x - Step 3: Cross multiply
13,412,627.13x = 18,511,841.01 × 7,905,680.53 - Step 4: Simplify right side
13,412,627.13x = 146,348,701,047,212.56 - Step 5: Solve for x
x = 146,348,701,047,212.56/13,412,627.13 - Step 6: Final answer
x = 10,911,262.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.