Finding the Third Proportional to 122,411,721 and 258,639,855
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Solution
The third proportional to 122,411,721 and 258,639,855 is: 546,471,972.19
Step by Step Solution
- Step 1: Write the proportion equation
122,411,721 : 258,639,855 = 258,639,855 : x - Step 2: Convert to fraction form
122,411,721/258,639,855 = 258,639,855/x - Step 3: Cross multiply
122,411,721x = 258,639,855 × 258,639,855 - Step 4: Simplify right side
122,411,721x = 66,894,574,594,421,024 - Step 5: Solve for x
x = 66,894,574,594,421,024/122,411,721 - Step 6: Final answer
x = 546,471,972.19
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Why These Related Problems?
These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.