Finding the Fourth Proportional to 13,126,309.26, 19,689,463.88 and 3,541,687.78
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Solution
The fourth proportional to 13,126,309.26, 19,689,463.88 and 3,541,687.78 is: 5,312,531.67
Step by Step Solution
- Step 1: Write the proportion equation
13,126,309.26 : 19,689,463.88 = 3,541,687.78 : x - Step 2: Convert to fraction form
13,126,309.26/19,689,463.88 = 3,541,687.78/x - Step 3: Cross multiply
13,126,309.26x = 19,689,463.88 × 3,541,687.78 - Step 4: Simplify right side
13,126,309.26x = 69,733,933,618,547.38 - Step 5: Solve for x
x = 69,733,933,618,547.38/13,126,309.26 - Step 6: Final answer
x = 5,312,531.67
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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.