Finding the Fourth Proportional to 850,827,613.20, 1,276,241,419.80 and 728,383,606.80
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Solution
The fourth proportional to 850,827,613.20, 1,276,241,419.80 and 728,383,606.80 is: 1,092,575,410.20
Step by Step Solution
- Step 1: Write the proportion equation
850,827,613.20 : 1,276,241,419.80 = 728,383,606.80 : x - Step 2: Convert to fraction form
850,827,613.20/1,276,241,419.80 = 728,383,606.80/x - Step 3: Cross multiply
850,827,613.20x = 1,276,241,419.80 × 728,383,606.80 - Step 4: Simplify right side
850,827,613.20x = 929,593,328,501,476,864 - Step 5: Solve for x
x = 929,593,328,501,476,864/850,827,613.20 - Step 6: Final answer
x = 1,092,575,410.20
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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.