Finding the Third Proportional to 120,728,159 and 261,872,491
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Solution
The third proportional to 120,728,159 and 261,872,491 is: 568,029,878.95
Step by Step Solution
- Step 1: Write the proportion equation
120,728,159 : 261,872,491 = 261,872,491 : x - Step 2: Convert to fraction form
120,728,159/261,872,491 = 261,872,491/x - Step 3: Cross multiply
120,728,159x = 261,872,491 × 261,872,491 - Step 4: Simplify right side
120,728,159x = 68,577,201,542,545,080 - Step 5: Solve for x
x = 68,577,201,542,545,080/120,728,159 - Step 6: Final answer
x = 568,029,878.95
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Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.