Finding the Fourth Proportional to 19,578,858.18, 29,224,571.10 and 18,135,995.88
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Solution
The fourth proportional to 19,578,858.18, 29,224,571.10 and 18,135,995.88 is: 27,070,868.80
Step by Step Solution
- Step 1: Write the proportion equation
19,578,858.18 : 29,224,571.10 = 18,135,995.88 : x - Step 2: Convert to fraction form
19,578,858.18/29,224,571.10 = 18,135,995.88/x - Step 3: Cross multiply
19,578,858.18x = 29,224,571.10 × 18,135,995.88 - Step 4: Simplify right side
19,578,858.18x = 530,016,701,064,367.06 - Step 5: Solve for x
x = 530,016,701,064,367.06/19,578,858.18 - Step 6: Final answer
x = 27,070,868.80
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.