Finding the Fourth Proportional to 21,394,943.02, 29,492,260.56 and 13,119,659.44
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Solution
The fourth proportional to 21,394,943.02, 29,492,260.56 and 13,119,659.44 is: 18,085,040.67
Step by Step Solution
- Step 1: Write the proportion equation
21,394,943.02 : 29,492,260.56 = 13,119,659.44 : x - Step 2: Convert to fraction form
21,394,943.02/29,492,260.56 = 13,119,659.44/x - Step 3: Cross multiply
21,394,943.02x = 29,492,260.56 × 13,119,659.44 - Step 4: Simplify right side
21,394,943.02x = 386,928,414,662,943.62 - Step 5: Solve for x
x = 386,928,414,662,943.62/21,394,943.02 - Step 6: Final answer
x = 18,085,040.67
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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.