Finding the Fourth Proportional to 13,548,889.94, 18,697,421.34 and 7,353,936.26
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Solution
The fourth proportional to 13,548,889.94, 18,697,421.34 and 7,353,936.26 is: 10,148,406.65
Step by Step Solution
- Step 1: Write the proportion equation
13,548,889.94 : 18,697,421.34 = 7,353,936.26 : x - Step 2: Convert to fraction form
13,548,889.94/18,697,421.34 = 7,353,936.26/x - Step 3: Cross multiply
13,548,889.94x = 18,697,421.34 × 7,353,936.26 - Step 4: Simplify right side
13,548,889.94x = 137,499,644,760,723.78 - Step 5: Solve for x
x = 137,499,644,760,723.78/13,548,889.94 - Step 6: Final answer
x = 10,148,406.65
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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.