Finding the Fourth Proportional to 7,898,113.80, 11,847,170.70 and 6,835,231.80
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Solution
The fourth proportional to 7,898,113.80, 11,847,170.70 and 6,835,231.80 is: 10,252,847.70
Step by Step Solution
- Step 1: Write the proportion equation
7,898,113.80 : 11,847,170.70 = 6,835,231.80 : x - Step 2: Convert to fraction form
7,898,113.80/11,847,170.70 = 6,835,231.80/x - Step 3: Cross multiply
7,898,113.80x = 11,847,170.70 × 6,835,231.80 - Step 4: Simplify right side
7,898,113.80x = 80,978,157,908,668.25 - Step 5: Solve for x
x = 80,978,157,908,668.25/7,898,113.80 - Step 6: Final answer
x = 10,252,847.70
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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.