Finding the Fourth Proportional to 21,504,805.80, 32,257,208.70 and 8,731,429.80
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Solution
The fourth proportional to 21,504,805.80, 32,257,208.70 and 8,731,429.80 is: 13,097,144.70
Step by Step Solution
- Step 1: Write the proportion equation
21,504,805.80 : 32,257,208.70 = 8,731,429.80 : x - Step 2: Convert to fraction form
21,504,805.80/32,257,208.70 = 8,731,429.80/x - Step 3: Cross multiply
21,504,805.80x = 32,257,208.70 × 8,731,429.80 - Step 4: Simplify right side
21,504,805.80x = 281,651,553,307,999.25 - Step 5: Solve for x
x = 281,651,553,307,999.25/21,504,805.80 - Step 6: Final answer
x = 13,097,144.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.