Finding the Fourth Proportional to 19,849,827.26, 27,389,548.77 and 12,406,611.53
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Solution
The fourth proportional to 19,849,827.26, 27,389,548.77 and 12,406,611.53 is: 17,119,115.80
Step by Step Solution
- Step 1: Write the proportion equation
19,849,827.26 : 27,389,548.77 = 12,406,611.53 : x - Step 2: Convert to fraction form
19,849,827.26/27,389,548.77 = 12,406,611.53/x - Step 3: Cross multiply
19,849,827.26x = 27,389,548.77 × 12,406,611.53 - Step 4: Simplify right side
19,849,827.26x = 339,811,491,571,379.31 - Step 5: Solve for x
x = 339,811,491,571,379.31/19,849,827.26 - Step 6: Final answer
x = 17,119,115.80
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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.