Finding the Third Proportional to 221,561,115 and 512,873,889
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Solution
The third proportional to 221,561,115 and 512,873,889 is: 1,187,210,246.79
Step by Step Solution
- Step 1: Write the proportion equation
221,561,115 : 512,873,889 = 512,873,889 : x - Step 2: Convert to fraction form
221,561,115/512,873,889 = 512,873,889/x - Step 3: Cross multiply
221,561,115x = 512,873,889 × 512,873,889 - Step 4: Simplify right side
221,561,115x = 263,039,626,017,984,320 - Step 5: Solve for x
x = 263,039,626,017,984,320/221,561,115 - Step 6: Final answer
x = 1,187,210,246.79
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Why These Related Problems?
These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.