Finding the Fourth Proportional to 298,971,983.20, 448,457,974.80 and 274,785,512.80
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Solution
The fourth proportional to 298,971,983.20, 448,457,974.80 and 274,785,512.80 is: 412,178,269.20
Step by Step Solution
- Step 1: Write the proportion equation
298,971,983.20 : 448,457,974.80 = 274,785,512.80 : x - Step 2: Convert to fraction form
298,971,983.20/448,457,974.80 = 274,785,512.80/x - Step 3: Cross multiply
298,971,983.20x = 448,457,974.80 × 274,785,512.80 - Step 4: Simplify right side
298,971,983.20x = 123,229,754,574,667,488 - Step 5: Solve for x
x = 123,229,754,574,667,488/298,971,983.20 - Step 6: Final answer
x = 412,178,269.20
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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.