Finding the Fourth Proportional to 14,217,372.75, 19,619,915.33 and 7,690,986.14
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Solution
The fourth proportional to 14,217,372.75, 19,619,915.33 and 7,690,986.14 is: 10,613,528.91
Step by Step Solution
- Step 1: Write the proportion equation
14,217,372.75 : 19,619,915.33 = 7,690,986.14 : x - Step 2: Convert to fraction form
14,217,372.75/19,619,915.33 = 7,690,986.14/x - Step 3: Cross multiply
14,217,372.75x = 19,619,915.33 × 7,690,986.14 - Step 4: Simplify right side
14,217,372.75x = 150,896,496,734,449 - Step 5: Solve for x
x = 150,896,496,734,449/14,217,372.75 - Step 6: Final answer
x = 10,613,528.91
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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.