Finding the Fourth Proportional to 776,707,477.31, 1,165,053,242.97 and 448,974,455.62
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Solution
The fourth proportional to 776,707,477.31, 1,165,053,242.97 and 448,974,455.62 is: 673,457,074.65
Step by Step Solution
- Step 1: Write the proportion equation
776,707,477.31 : 1,165,053,242.97 = 448,974,455.62 : x - Step 2: Convert to fraction form
776,707,477.31/1,165,053,242.97 = 448,974,455.62/x - Step 3: Cross multiply
776,707,477.31x = 1,165,053,242.97 × 448,974,455.62 - Step 4: Simplify right side
776,707,477.31x = 523,079,145,530,771,392 - Step 5: Solve for x
x = 523,079,145,530,771,392/776,707,477.31 - Step 6: Final answer
x = 673,457,074.65
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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.