Finding the Fourth Proportional to 5,631,321,102.74, 7,771,230,817.34 and 3,056,344,878.10
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Solution
The fourth proportional to 5,631,321,102.74, 7,771,230,817.34 and 3,056,344,878.10 is: 4,217,760,108.47
Step by Step Solution
- Step 1: Write the proportion equation
5,631,321,102.74 : 7,771,230,817.34 = 3,056,344,878.10 : x - Step 2: Convert to fraction form
5,631,321,102.74/7,771,230,817.34 = 3,056,344,878.10/x - Step 3: Cross multiply
5,631,321,102.74x = 7,771,230,817.34 × 3,056,344,878.10 - Step 4: Simplify right side
5,631,321,102.74x = 23,751,561,505,109,987,328 - Step 5: Solve for x
x = 23,751,561,505,109,987,328/5,631,321,102.74 - Step 6: Final answer
x = 4,217,760,108.47
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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.