Finding the Fourth Proportional to 877,761,992.13, 1,211,323,268.79 and 481,283,977.02
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Solution
The fourth proportional to 877,761,992.13, 1,211,323,268.79 and 481,283,977.02 is: 664,178,314.27
Step by Step Solution
- Step 1: Write the proportion equation
877,761,992.13 : 1,211,323,268.79 = 481,283,977.02 : x - Step 2: Convert to fraction form
877,761,992.13/1,211,323,268.79 = 481,283,977.02/x - Step 3: Cross multiply
877,761,992.13x = 1,211,323,268.79 × 481,283,977.02 - Step 4: Simplify right side
877,761,992.13x = 582,990,480,260,117,632 - Step 5: Solve for x
x = 582,990,480,260,117,632/877,761,992.13 - Step 6: Final answer
x = 664,178,314.27
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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.