Finding the Fourth Proportional to 2,787,453,982.13, 3,846,765,791.70 and 1,517,376,874.23
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Solution
The fourth proportional to 2,787,453,982.13, 3,846,765,791.70 and 1,517,376,874.23 is: 2,094,023,252.16
Step by Step Solution
- Step 1: Write the proportion equation
2,787,453,982.13 : 3,846,765,791.70 = 1,517,376,874.23 : x - Step 2: Convert to fraction form
2,787,453,982.13/3,846,765,791.70 = 1,517,376,874.23/x - Step 3: Cross multiply
2,787,453,982.13x = 3,846,765,791.70 × 1,517,376,874.23 - Step 4: Simplify right side
2,787,453,982.13x = 5,836,993,452,904,637,440 - Step 5: Solve for x
x = 5,836,993,452,904,637,440/2,787,453,982.13 - Step 6: Final answer
x = 2,094,023,252.16
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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.