Finding the Fourth Proportional to 21,652,681.44, 29,880,699.52 and 11,863,497.12
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Solution
The fourth proportional to 21,652,681.44, 29,880,699.52 and 11,863,497.12 is: 16,371,625.55
Step by Step Solution
- Step 1: Write the proportion equation
21,652,681.44 : 29,880,699.52 = 11,863,497.12 : x - Step 2: Convert to fraction form
21,652,681.44/29,880,699.52 = 11,863,497.12/x - Step 3: Cross multiply
21,652,681.44x = 29,880,699.52 × 11,863,497.12 - Step 4: Simplify right side
21,652,681.44x = 354,489,592,699,105.38 - Step 5: Solve for x
x = 354,489,592,699,105.38/21,652,681.44 - Step 6: Final answer
x = 16,371,625.55
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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.