Finding the Fourth Proportional to 21,418,734.29, 29,582,189.82 and 14,437,371.02
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Solution
The fourth proportional to 21,418,734.29, 29,582,189.82 and 14,437,371.02 is: 19,939,976.11
Step by Step Solution
- Step 1: Write the proportion equation
21,418,734.29 : 29,582,189.82 = 14,437,371.02 : x - Step 2: Convert to fraction form
21,418,734.29/29,582,189.82 = 14,437,371.02/x - Step 3: Cross multiply
21,418,734.29x = 29,582,189.82 × 14,437,371.02 - Step 4: Simplify right side
21,418,734.29x = 427,089,049,867,496.06 - Step 5: Solve for x
x = 427,089,049,867,496.06/21,418,734.29 - Step 6: Final answer
x = 19,939,976.11
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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.