Finding the Fourth Proportional to 13,182,845.14, 18,198,634.68 and 8,779,897.97
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Solution
The fourth proportional to 13,182,845.14, 18,198,634.68 and 8,779,897.97 is: 12,120,460.64
Step by Step Solution
- Step 1: Write the proportion equation
13,182,845.14 : 18,198,634.68 = 8,779,897.97 : x - Step 2: Convert to fraction form
13,182,845.14/18,198,634.68 = 8,779,897.97/x - Step 3: Cross multiply
13,182,845.14x = 18,198,634.68 × 8,779,897.97 - Step 4: Simplify right side
13,182,845.14x = 159,782,155,738,624.78 - Step 5: Solve for x
x = 159,782,155,738,624.78/13,182,845.14 - Step 6: Final answer
x = 12,120,460.64
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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.