Finding the Fourth Proportional to 13,489,921.94, 20,231,983.71 and 4,268,625.17
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Solution
The fourth proportional to 13,489,921.94, 20,231,983.71 and 4,268,625.17 is: 6,402,020.35
Step by Step Solution
- Step 1: Write the proportion equation
13,489,921.94 : 20,231,983.71 = 4,268,625.17 : x - Step 2: Convert to fraction form
13,489,921.94/20,231,983.71 = 4,268,625.17/x - Step 3: Cross multiply
13,489,921.94x = 20,231,983.71 × 4,268,625.17 - Step 4: Simplify right side
13,489,921.94x = 86,362,754,802,376.06 - Step 5: Solve for x
x = 86,362,754,802,376.06/13,489,921.94 - Step 6: Final answer
x = 6,402,020.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.