Finding the Fourth Proportional to 831,670,540.47, 1,147,714,415.78 and 460,398,771.99
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Solution
The fourth proportional to 831,670,540.47, 1,147,714,415.78 and 460,398,771.99 is: 635,355,326.31
Step by Step Solution
- Step 1: Write the proportion equation
831,670,540.47 : 1,147,714,415.78 = 460,398,771.99 : x - Step 2: Convert to fraction form
831,670,540.47/1,147,714,415.78 = 460,398,771.99/x - Step 3: Cross multiply
831,670,540.47x = 1,147,714,415.78 × 460,398,771.99 - Step 4: Simplify right side
831,670,540.47x = 528,406,307,620,332,288 - Step 5: Solve for x
x = 528,406,307,620,332,288/831,670,540.47 - Step 6: Final answer
x = 635,355,326.31
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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.