Finding the Fourth Proportional to 7,441,632,145.80, 11,162,448,218.70 and 6,407,660,536.20
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Solution
The fourth proportional to 7,441,632,145.80, 11,162,448,218.70 and 6,407,660,536.20 is: 9,611,490,804.30
Step by Step Solution
- Step 1: Write the proportion equation
7,441,632,145.80 : 11,162,448,218.70 = 6,407,660,536.20 : x - Step 2: Convert to fraction form
7,441,632,145.80/11,162,448,218.70 = 6,407,660,536.20/x - Step 3: Cross multiply
7,441,632,145.80x = 11,162,448,218.70 × 6,407,660,536.20 - Step 4: Simplify right side
7,441,632,145.80x = 71,525,178,938,339,983,360 - Step 5: Solve for x
x = 71,525,178,938,339,983,360/7,441,632,145.80 - Step 6: Final answer
x = 9,611,490,804.30
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Double scale
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Similar ratio
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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.