Finding the Fourth Proportional to 84,574,473.80, 126,861,710.70 and 82,448,709.80
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Solution
The fourth proportional to 84,574,473.80, 126,861,710.70 and 82,448,709.80 is: 123,673,064.70
Step by Step Solution
- Step 1: Write the proportion equation
84,574,473.80 : 126,861,710.70 = 82,448,709.80 : x - Step 2: Convert to fraction form
84,574,473.80/126,861,710.70 = 82,448,709.80/x - Step 3: Cross multiply
84,574,473.80x = 126,861,710.70 × 82,448,709.80 - Step 4: Simplify right side
84,574,473.80x = 10,459,584,370,235,854 - Step 5: Solve for x
x = 10,459,584,370,235,854/84,574,473.80 - Step 6: Final answer
x = 123,673,064.70
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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.