Finding the Fourth Proportional to 14,121,513.51, 19,486,129.23 and 7,925,138.97
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Solution
The fourth proportional to 14,121,513.51, 19,486,129.23 and 7,925,138.97 is: 10,935,816.62
Step by Step Solution
- Step 1: Write the proportion equation
14,121,513.51 : 19,486,129.23 = 7,925,138.97 : x - Step 2: Convert to fraction form
14,121,513.51/19,486,129.23 = 7,925,138.97/x - Step 3: Cross multiply
14,121,513.51x = 19,486,129.23 × 7,925,138.97 - Step 4: Simplify right side
14,121,513.51x = 154,430,282,135,129.09 - Step 5: Solve for x
x = 154,430,282,135,129.09/14,121,513.51 - Step 6: Final answer
x = 10,935,816.62
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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.