Finding the Fourth Proportional to 912,384,481.60, 1,368,576,722.40 and 548,691,630.40
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Solution
The fourth proportional to 912,384,481.60, 1,368,576,722.40 and 548,691,630.40 is: 823,037,445.60
Step by Step Solution
- Step 1: Write the proportion equation
912,384,481.60 : 1,368,576,722.40 = 548,691,630.40 : x - Step 2: Convert to fraction form
912,384,481.60/1,368,576,722.40 = 548,691,630.40/x - Step 3: Cross multiply
912,384,481.60x = 1,368,576,722.40 × 548,691,630.40 - Step 4: Simplify right side
912,384,481.60x = 750,926,593,141,144,192 - Step 5: Solve for x
x = 750,926,593,141,144,192/912,384,481.60 - Step 6: Final answer
x = 823,037,445.60
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Double scale
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Similar ratio
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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.