Finding the Fourth Proportional to 19,752,905.62, 27,253,753.05 and 13,559,846.50
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Solution
The fourth proportional to 19,752,905.62, 27,253,753.05 and 13,559,846.50 is: 18,708,979.58
Step by Step Solution
- Step 1: Write the proportion equation
19,752,905.62 : 27,253,753.05 = 13,559,846.50 : x - Step 2: Convert to fraction form
19,752,905.62/27,253,753.05 = 13,559,846.50/x - Step 3: Cross multiply
19,752,905.62x = 27,253,753.05 × 13,559,846.50 - Step 4: Simplify right side
19,752,905.62x = 369,556,707,906,906.81 - Step 5: Solve for x
x = 369,556,707,906,906.81/19,752,905.62 - Step 6: Final answer
x = 18,708,979.58
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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.