Finding the Fourth Proportional to 823,165,911.80, 1,134,399,059.88 and 808,035,786.44
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Solution
The fourth proportional to 823,165,911.80, 1,134,399,059.88 and 808,035,786.44 is: 1,113,548,342.26
Step by Step Solution
- Step 1: Write the proportion equation
823,165,911.80 : 1,134,399,059.88 = 808,035,786.44 : x - Step 2: Convert to fraction form
823,165,911.80/1,134,399,059.88 = 808,035,786.44/x - Step 3: Cross multiply
823,165,911.80x = 1,134,399,059.88 × 808,035,786.44 - Step 4: Simplify right side
823,165,911.80x = 916,635,036,486,932,608 - Step 5: Solve for x
x = 916,635,036,486,932,608/823,165,911.80 - Step 6: Final answer
x = 1,113,548,342.26
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1.5x scale
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.