Finding the Fourth Proportional to 7,136,403.80, 9,848,246.97 and 3,873,218.55
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Solution
The fourth proportional to 7,136,403.80, 9,848,246.97 and 3,873,218.55 is: 5,345,046.88
Step by Step Solution
- Step 1: Write the proportion equation
7,136,403.80 : 9,848,246.97 = 3,873,218.55 : x - Step 2: Convert to fraction form
7,136,403.80/9,848,246.97 = 3,873,218.55/x - Step 3: Cross multiply
7,136,403.80x = 9,848,246.97 × 3,873,218.55 - Step 4: Simplify right side
7,136,403.80x = 38,144,412,849,185.30 - Step 5: Solve for x
x = 38,144,412,849,185.30/7,136,403.80 - Step 6: Final answer
x = 5,345,046.88
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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.