Finding the Fourth Proportional to 20,971,052.28, 31,464,123.57 and 7,326,206.19
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Solution
The fourth proportional to 20,971,052.28, 31,464,123.57 and 7,326,206.19 is: 10,991,945.17
Step by Step Solution
- Step 1: Write the proportion equation
20,971,052.28 : 31,464,123.57 = 7,326,206.19 : x - Step 2: Convert to fraction form
20,971,052.28/31,464,123.57 = 7,326,206.19/x - Step 3: Cross multiply
20,971,052.28x = 31,464,123.57 × 7,326,206.19 - Step 4: Simplify right side
20,971,052.28x = 230,512,656,861,458.91 - Step 5: Solve for x
x = 230,512,656,861,458.91/20,971,052.28 - Step 6: Final answer
x = 10,991,945.17
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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.