Finding the Fourth Proportional to 21,418,846.72, 29,582,344.96 and 14,437,483.44
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Solution
The fourth proportional to 21,418,846.72, 29,582,344.96 and 14,437,483.44 is: 19,940,131.28
Step by Step Solution
- Step 1: Write the proportion equation
21,418,846.72 : 29,582,344.96 = 14,437,483.44 : x - Step 2: Convert to fraction form
21,418,846.72/29,582,344.96 = 14,437,483.44/x - Step 3: Cross multiply
21,418,846.72x = 29,582,344.96 × 14,437,483.44 - Step 4: Simplify right side
21,418,846.72x = 427,094,615,476,367.44 - Step 5: Solve for x
x = 427,094,615,476,367.44/21,418,846.72 - Step 6: Final answer
x = 19,940,131.28
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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.