Finding the Fourth Proportional to 850,827,618.70, 1,276,241,428.05 and 728,383,612.30
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Solution
The fourth proportional to 850,827,618.70, 1,276,241,428.05 and 728,383,612.30 is: 1,092,575,418.45
Step by Step Solution
- Step 1: Write the proportion equation
850,827,618.70 : 1,276,241,428.05 = 728,383,612.30 : x - Step 2: Convert to fraction form
850,827,618.70/1,276,241,428.05 = 728,383,612.30/x - Step 3: Cross multiply
850,827,618.70x = 1,276,241,428.05 × 728,383,612.30 - Step 4: Simplify right side
850,827,618.70x = 929,593,341,529,969,408 - Step 5: Solve for x
x = 929,593,341,529,969,408/850,827,618.70 - Step 6: Final answer
x = 1,092,575,418.45
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1.5x scale
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.