Finding the Fourth Proportional to 16,578,640.36, 22,877,987.16 and 9,515,396.19
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Solution
The fourth proportional to 16,578,640.36, 22,877,987.16 and 9,515,396.19 is: 13,130,938.80
Step by Step Solution
- Step 1: Write the proportion equation
16,578,640.36 : 22,877,987.16 = 9,515,396.19 : x - Step 2: Convert to fraction form
16,578,640.36/22,877,987.16 = 9,515,396.19/x - Step 3: Cross multiply
16,578,640.36x = 22,877,987.16 × 9,515,396.19 - Step 4: Simplify right side
16,578,640.36x = 217,693,111,978,608.09 - Step 5: Solve for x
x = 217,693,111,978,608.09/16,578,640.36 - Step 6: Final answer
x = 13,130,938.80
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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.