Finding the Fourth Proportional to 1,081,703,951.36, 1,492,277,340.96 and 635,465,936.96
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Solution
The fourth proportional to 1,081,703,951.36, 1,492,277,340.96 and 635,465,936.96 is: 876,664,467.65
Step by Step Solution
- Step 1: Write the proportion equation
1,081,703,951.36 : 1,492,277,340.96 = 635,465,936.96 : x - Step 2: Convert to fraction form
1,081,703,951.36/1,492,277,340.96 = 635,465,936.96/x - Step 3: Cross multiply
1,081,703,951.36x = 1,492,277,340.96 × 635,465,936.96 - Step 4: Simplify right side
1,081,703,951.36x = 948,291,418,677,323,904 - Step 5: Solve for x
x = 948,291,418,677,323,904/1,081,703,951.36 - Step 6: Final answer
x = 876,664,467.65
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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.