Finding the Fourth Proportional to 827,917,506.70, 1,142,539,629.46 and 451,573,999.08
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Solution
The fourth proportional to 827,917,506.70, 1,142,539,629.46 and 451,573,999.08 is: 623,179,465.84
Step by Step Solution
- Step 1: Write the proportion equation
827,917,506.70 : 1,142,539,629.46 = 451,573,999.08 : x - Step 2: Convert to fraction form
827,917,506.70/1,142,539,629.46 = 451,573,999.08/x - Step 3: Cross multiply
827,917,506.70x = 1,142,539,629.46 × 451,573,999.08 - Step 4: Simplify right side
827,917,506.70x = 515,941,189,582,633,600 - Step 5: Solve for x
x = 515,941,189,582,633,600/827,917,506.70 - Step 6: Final answer
x = 623,179,465.84
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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.