Finding the Fourth Proportional to 756,635,286.10, 1,044,157,142.62 and 422,107,809.68
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Solution
The fourth proportional to 756,635,286.10, 1,044,157,142.62 and 422,107,809.68 is: 582,509,027.18
Step by Step Solution
- Step 1: Write the proportion equation
756,635,286.10 : 1,044,157,142.62 = 422,107,809.68 : x - Step 2: Convert to fraction form
756,635,286.10/1,044,157,142.62 = 422,107,809.68/x - Step 3: Cross multiply
756,635,286.10x = 1,044,157,142.62 × 422,107,809.68 - Step 4: Simplify right side
756,635,286.10x = 440,746,884,433,055,616 - Step 5: Solve for x
x = 440,746,884,433,055,616/756,635,286.10 - Step 6: Final answer
x = 582,509,027.18
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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.