Finding the Fourth Proportional to 7,210,958,757.74, 9,951,181,513.74 and 3,995,922,450.90
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Solution
The fourth proportional to 7,210,958,757.74, 9,951,181,513.74 and 3,995,922,450.90 is: 5,514,405,359.90
Step by Step Solution
- Step 1: Write the proportion equation
7,210,958,757.74 : 9,951,181,513.74 = 3,995,922,450.90 : x - Step 2: Convert to fraction form
7,210,958,757.74/9,951,181,513.74 = 3,995,922,450.90/x - Step 3: Cross multiply
7,210,958,757.74x = 9,951,181,513.74 × 3,995,922,450.90 - Step 4: Simplify right side
7,210,958,757.74x = 39,764,149,623,734,714,368 - Step 5: Solve for x
x = 39,764,149,623,734,714,368/7,210,958,757.74 - Step 6: Final answer
x = 5,514,405,359.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.