Finding the Fourth Proportional to 21,998,845.99, 30,356,993.24 and 12,209,296.81
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Solution
The fourth proportional to 21,998,845.99, 30,356,993.24 and 12,209,296.81 is: 16,848,044.71
Step by Step Solution
- Step 1: Write the proportion equation
21,998,845.99 : 30,356,993.24 = 12,209,296.81 : x - Step 2: Convert to fraction form
21,998,845.99/30,356,993.24 = 12,209,296.81/x - Step 3: Cross multiply
21,998,845.99x = 30,356,993.24 × 12,209,296.81 - Step 4: Simplify right side
21,998,845.99x = 370,637,540,760,766.12 - Step 5: Solve for x
x = 370,637,540,760,766.12/21,998,845.99 - Step 6: Final answer
x = 16,848,044.71
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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.