Finding the Fourth Proportional to 20,969,527.81, 31,456,108.14 and 6,399,725.15
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Solution
The fourth proportional to 20,969,527.81, 31,456,108.14 and 6,399,725.15 is: 9,600,142.09
Step by Step Solution
- Step 1: Write the proportion equation
20,969,527.81 : 31,456,108.14 = 6,399,725.15 : x - Step 2: Convert to fraction form
20,969,527.81/31,456,108.14 = 6,399,725.15/x - Step 3: Cross multiply
20,969,527.81x = 31,456,108.14 × 6,399,725.15 - Step 4: Simplify right side
20,969,527.81x = 201,310,446,457,315.03 - Step 5: Solve for x
x = 201,310,446,457,315.03/20,969,527.81 - Step 6: Final answer
x = 9,600,142.09
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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.