Finding the Third Proportional to 979,678,115 and 2,115,201,728
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Solution
The third proportional to 979,678,115 and 2,115,201,728 is: 4,566,886,083.94
Step by Step Solution
- Step 1: Write the proportion equation
979,678,115 : 2,115,201,728 = 2,115,201,728 : x - Step 2: Convert to fraction form
979,678,115/2,115,201,728 = 2,115,201,728/x - Step 3: Cross multiply
979,678,115x = 2,115,201,728 × 2,115,201,728 - Step 4: Simplify right side
979,678,115x = 4,474,078,350,134,185,984 - Step 5: Solve for x
x = 4,474,078,350,134,185,984/979,678,115 - Step 6: Final answer
x = 4,566,886,083.94
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.