Finding the Fourth Proportional to 850,827,670.20, 1,276,241,505.30 and 728,383,663.80
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Solution
The fourth proportional to 850,827,670.20, 1,276,241,505.30 and 728,383,663.80 is: 1,092,575,495.70
Step by Step Solution
- Step 1: Write the proportion equation
850,827,670.20 : 1,276,241,505.30 = 728,383,663.80 : x - Step 2: Convert to fraction form
850,827,670.20/1,276,241,505.30 = 728,383,663.80/x - Step 3: Cross multiply
850,827,670.20x = 1,276,241,505.30 × 728,383,663.80 - Step 4: Simplify right side
850,827,670.20x = 929,593,463,524,040,960 - Step 5: Solve for x
x = 929,593,463,524,040,960/850,827,670.20 - Step 6: Final answer
x = 1,092,575,495.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.