Finding the Third Proportional to 405,487,749 and 628,153,768
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Solution
The third proportional to 405,487,749 and 628,153,768 is: 973,092,669.82
Step by Step Solution
- Step 1: Write the proportion equation
405,487,749 : 628,153,768 = 628,153,768 : x - Step 2: Convert to fraction form
405,487,749/628,153,768 = 628,153,768/x - Step 3: Cross multiply
405,487,749x = 628,153,768 × 628,153,768 - Step 4: Simplify right side
405,487,749x = 394,577,156,252,597,824 - Step 5: Solve for x
x = 394,577,156,252,597,824/405,487,749 - Step 6: Final answer
x = 973,092,669.82
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.