Finding the Fourth Proportional to 20,750,192.21, 31,129,487.54 and 7,288,069.97
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Solution
The fourth proportional to 20,750,192.21, 31,129,487.54 and 7,288,069.97 is: 10,933,579.84
Step by Step Solution
- Step 1: Write the proportion equation
20,750,192.21 : 31,129,487.54 = 7,288,069.97 : x - Step 2: Convert to fraction form
20,750,192.21/31,129,487.54 = 7,288,069.97/x - Step 3: Cross multiply
20,750,192.21x = 31,129,487.54 × 7,288,069.97 - Step 4: Simplify right side
20,750,192.21x = 226,873,883,129,675.38 - Step 5: Solve for x
x = 226,873,883,129,675.38/20,750,192.21 - Step 6: Final answer
x = 10,933,579.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.