Finding the Fourth Proportional to 21,510,578.18, 29,684,213.82 and 11,721,106.91
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Solution
The fourth proportional to 21,510,578.18, 29,684,213.82 and 11,721,106.91 is: 16,174,918.25
Step by Step Solution
- Step 1: Write the proportion equation
21,510,578.18 : 29,684,213.82 = 11,721,106.91 : x - Step 2: Convert to fraction form
21,510,578.18/29,684,213.82 = 11,721,106.91/x - Step 3: Cross multiply
21,510,578.18x = 29,684,213.82 × 11,721,106.91 - Step 4: Simplify right side
21,510,578.18x = 347,931,843,575,098.44 - Step 5: Solve for x
x = 347,931,843,575,098.44/21,510,578.18 - Step 6: Final answer
x = 16,174,918.25
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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.