Finding the Fourth Proportional to 842,008,472.25, 1,161,842,604.39 and 484,707,183.09
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Solution
The fourth proportional to 842,008,472.25, 1,161,842,604.39 and 484,707,183.09 is: 668,821,602.78
Step by Step Solution
- Step 1: Write the proportion equation
842,008,472.25 : 1,161,842,604.39 = 484,707,183.09 : x - Step 2: Convert to fraction form
842,008,472.25/1,161,842,604.39 = 484,707,183.09/x - Step 3: Cross multiply
842,008,472.25x = 1,161,842,604.39 × 484,707,183.09 - Step 4: Simplify right side
842,008,472.25x = 563,153,455,967,826,176 - Step 5: Solve for x
x = 563,153,455,967,826,176/842,008,472.25 - Step 6: Final answer
x = 668,821,602.78
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Double scale
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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.