Finding the Fourth Proportional to 13,547,378.07, 18,704,136.74 and 8,396,205.75
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Solution
The fourth proportional to 13,547,378.07, 18,704,136.74 and 8,396,205.75 is: 11,592,189.99
Step by Step Solution
- Step 1: Write the proportion equation
13,547,378.07 : 18,704,136.74 = 8,396,205.75 : x - Step 2: Convert to fraction form
13,547,378.07/18,704,136.74 = 8,396,205.75/x - Step 3: Cross multiply
13,547,378.07x = 18,704,136.74 × 8,396,205.75 - Step 4: Simplify right side
13,547,378.07x = 157,043,780,403,193.22 - Step 5: Solve for x
x = 157,043,780,403,193.22/13,547,378.07 - Step 6: Final answer
x = 11,592,189.99
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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.