Finding the Fourth Proportional to 66,463,295.80, 99,694,943.70 and 30,631,487.80
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Solution
The fourth proportional to 66,463,295.80, 99,694,943.70 and 30,631,487.80 is: 45,947,231.70
Step by Step Solution
- Step 1: Write the proportion equation
66,463,295.80 : 99,694,943.70 = 30,631,487.80 : x - Step 2: Convert to fraction form
66,463,295.80/99,694,943.70 = 30,631,487.80/x - Step 3: Cross multiply
66,463,295.80x = 99,694,943.70 × 30,631,487.80 - Step 4: Simplify right side
66,463,295.80x = 3,053,804,451,668,237 - Step 5: Solve for x
x = 3,053,804,451,668,237/66,463,295.80 - Step 6: Final answer
x = 45,947,231.70
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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.