Finding the Fourth Proportional to 20,206,619.75, 30,296,094.69 and 7,252,482.80
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Solution
The fourth proportional to 20,206,619.75, 30,296,094.69 and 7,252,482.80 is: 10,873,758.62
Step by Step Solution
- Step 1: Write the proportion equation
20,206,619.75 : 30,296,094.69 = 7,252,482.80 : x - Step 2: Convert to fraction form
20,206,619.75/30,296,094.69 = 7,252,482.80/x - Step 3: Cross multiply
20,206,619.75x = 30,296,094.69 × 7,252,482.80 - Step 4: Simplify right side
20,206,619.75x = 219,721,905,646,396.34 - Step 5: Solve for x
x = 219,721,905,646,396.34/20,206,619.75 - Step 6: Final answer
x = 10,873,758.62
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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.