Finding the Fourth Proportional to 13,329,005.49, 18,394,052.62 and 7,448,639.68
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Solution
The fourth proportional to 13,329,005.49, 18,394,052.62 and 7,448,639.68 is: 10,279,136.75
Step by Step Solution
- Step 1: Write the proportion equation
13,329,005.49 : 18,394,052.62 = 7,448,639.68 : x - Step 2: Convert to fraction form
13,329,005.49/18,394,052.62 = 7,448,639.68/x - Step 3: Cross multiply
13,329,005.49x = 18,394,052.62 × 7,448,639.68 - Step 4: Simplify right side
13,329,005.49x = 137,010,670,239,677.14 - Step 5: Solve for x
x = 137,010,670,239,677.14/13,329,005.49 - Step 6: Final answer
x = 10,279,136.75
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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.