Finding the Fourth Proportional to 20,033,518.23, 27,645,983.84 and 11,212,966.87
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Solution
The fourth proportional to 20,033,518.23, 27,645,983.84 and 11,212,966.87 is: 15,473,742.42
Step by Step Solution
- Step 1: Write the proportion equation
20,033,518.23 : 27,645,983.84 = 11,212,966.87 : x - Step 2: Convert to fraction form
20,033,518.23/27,645,983.84 = 11,212,966.87/x - Step 3: Cross multiply
20,033,518.23x = 27,645,983.84 × 11,212,966.87 - Step 4: Simplify right side
20,033,518.23x = 309,993,500,845,392.81 - Step 5: Solve for x
x = 309,993,500,845,392.81/20,033,518.23 - Step 6: Final answer
x = 15,473,742.42
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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.