Finding the Fourth Proportional to 77,568,167.80, 116,352,251.70 and 65,624,231.80
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Solution
The fourth proportional to 77,568,167.80, 116,352,251.70 and 65,624,231.80 is: 98,436,347.70
Step by Step Solution
- Step 1: Write the proportion equation
77,568,167.80 : 116,352,251.70 = 65,624,231.80 : x - Step 2: Convert to fraction form
77,568,167.80/116,352,251.70 = 65,624,231.80/x - Step 3: Cross multiply
77,568,167.80x = 116,352,251.70 × 65,624,231.80 - Step 4: Simplify right side
77,568,167.80x = 7,635,527,136,012,744 - Step 5: Solve for x
x = 7,635,527,136,012,744/77,568,167.80 - Step 6: Final answer
x = 98,436,347.70
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1.5x scale
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.