Finding the Fourth Proportional to 13,691,596.69, 18,894,408.02 and 7,497,035.20
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Solution
The fourth proportional to 13,691,596.69, 18,894,408.02 and 7,497,035.20 is: 10,345,911.09
Step by Step Solution
- Step 1: Write the proportion equation
13,691,596.69 : 18,894,408.02 = 7,497,035.20 : x - Step 2: Convert to fraction form
13,691,596.69/18,894,408.02 = 7,497,035.20/x - Step 3: Cross multiply
13,691,596.69x = 18,894,408.02 × 7,497,035.20 - Step 4: Simplify right side
13,691,596.69x = 141,652,042,009,102.31 - Step 5: Solve for x
x = 141,652,042,009,102.31/13,691,596.69 - Step 6: Final answer
x = 10,345,911.09
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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.