Finding the Fourth Proportional to 320,804,988.20, 481,207,482.30 and 116,339,733.80
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Solution
The fourth proportional to 320,804,988.20, 481,207,482.30 and 116,339,733.80 is: 174,509,600.70
Step by Step Solution
- Step 1: Write the proportion equation
320,804,988.20 : 481,207,482.30 = 116,339,733.80 : x - Step 2: Convert to fraction form
320,804,988.20/481,207,482.30 = 116,339,733.80/x - Step 3: Cross multiply
320,804,988.20x = 481,207,482.30 × 116,339,733.80 - Step 4: Simplify right side
320,804,988.20x = 55,983,550,393,350,208 - Step 5: Solve for x
x = 55,983,550,393,350,208/320,804,988.20 - Step 6: Final answer
x = 174,509,600.70
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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.