Finding the Fourth Proportional to 3,221,703,715.77, 4,446,338,169.81 and 1,951,507,430.12
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Solution
The fourth proportional to 3,221,703,715.77, 4,446,338,169.81 and 1,951,507,430.12 is: 2,693,314,699.52
Step by Step Solution
- Step 1: Write the proportion equation
3,221,703,715.77 : 4,446,338,169.81 = 1,951,507,430.12 : x - Step 2: Convert to fraction form
3,221,703,715.77/4,446,338,169.81 = 1,951,507,430.12/x - Step 3: Cross multiply
3,221,703,715.77x = 4,446,338,169.81 × 1,951,507,430.12 - Step 4: Simplify right side
3,221,703,715.77x = 8,677,061,975,188,146,176 - Step 5: Solve for x
x = 8,677,061,975,188,146,176/3,221,703,715.77 - Step 6: Final answer
x = 2,693,314,699.52
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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.