Finding the Fourth Proportional to 13,985,687.94, 19,301,136.62 and 8,479,590.23
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Solution
The fourth proportional to 13,985,687.94, 19,301,136.62 and 8,479,590.23 is: 11,702,372.46
Step by Step Solution
- Step 1: Write the proportion equation
13,985,687.94 : 19,301,136.62 = 8,479,590.23 : x - Step 2: Convert to fraction form
13,985,687.94/19,301,136.62 = 8,479,590.23/x - Step 3: Cross multiply
13,985,687.94x = 19,301,136.62 × 8,479,590.23 - Step 4: Simplify right side
13,985,687.94x = 163,665,729,371,943.56 - Step 5: Solve for x
x = 163,665,729,371,943.56/13,985,687.94 - Step 6: Final answer
x = 11,702,372.46
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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.