Finding the Fourth Proportional to 442,880,721.80, 664,321,082.70 and 119,764,593.80
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Solution
The fourth proportional to 442,880,721.80, 664,321,082.70 and 119,764,593.80 is: 179,646,890.70
Step by Step Solution
- Step 1: Write the proportion equation
442,880,721.80 : 664,321,082.70 = 119,764,593.80 : x - Step 2: Convert to fraction form
442,880,721.80/664,321,082.70 = 119,764,593.80/x - Step 3: Cross multiply
442,880,721.80x = 664,321,082.70 × 119,764,593.80 - Step 4: Simplify right side
442,880,721.80x = 79,562,144,622,341,712 - Step 5: Solve for x
x = 79,562,144,622,341,712/442,880,721.80 - Step 6: Final answer
x = 179,646,890.70
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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.