Finding the Fourth Proportional to 706,628,125.44, 975,163,902.96 and 393,383,512.80
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Solution
The fourth proportional to 706,628,125.44, 975,163,902.96 and 393,383,512.80 is: 542,878,761.67
Step by Step Solution
- Step 1: Write the proportion equation
706,628,125.44 : 975,163,902.96 = 393,383,512.80 : x - Step 2: Convert to fraction form
706,628,125.44/975,163,902.96 = 393,383,512.80/x - Step 3: Cross multiply
706,628,125.44x = 975,163,902.96 × 393,383,512.80 - Step 4: Simplify right side
706,628,125.44x = 383,613,401,702,163,136 - Step 5: Solve for x
x = 383,613,401,702,163,136/706,628,125.44 - Step 6: Final answer
x = 542,878,761.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.