Finding the Fourth Proportional to 807,989,640.75, 1,115,026,181.73 and 450,757,418.94
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Solution
The fourth proportional to 807,989,640.75, 1,115,026,181.73 and 450,757,418.94 is: 622,045,504.52
Step by Step Solution
- Step 1: Write the proportion equation
807,989,640.75 : 1,115,026,181.73 = 450,757,418.94 : x - Step 2: Convert to fraction form
807,989,640.75/1,115,026,181.73 = 450,757,418.94/x - Step 3: Cross multiply
807,989,640.75x = 1,115,026,181.73 × 450,757,418.94 - Step 4: Simplify right side
807,989,640.75x = 502,606,323,727,138,176 - Step 5: Solve for x
x = 502,606,323,727,138,176/807,989,640.75 - Step 6: Final answer
x = 622,045,504.52
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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.