Finding the Fourth Proportional to 880,890,162.86, 1,215,651,463.97 and 479,027,415.00
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Solution
The fourth proportional to 880,890,162.86, 1,215,651,463.97 and 479,027,415.00 is: 661,070,361.41
Step by Step Solution
- Step 1: Write the proportion equation
880,890,162.86 : 1,215,651,463.97 = 479,027,415.00 : x - Step 2: Convert to fraction form
880,890,162.86/1,215,651,463.97 = 479,027,415.00/x - Step 3: Cross multiply
880,890,162.86x = 1,215,651,463.97 × 479,027,415.00 - Step 4: Simplify right side
880,890,162.86x = 582,330,378,328,678,272 - Step 5: Solve for x
x = 582,330,378,328,678,272/880,890,162.86 - Step 6: Final answer
x = 661,070,361.41
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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.