Finding the Fourth Proportional to 11,889,839.89, 16,408,990.97 and 6,734,118.61
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Solution
The fourth proportional to 11,889,839.89, 16,408,990.97 and 6,734,118.61 is: 9,293,656.81
Step by Step Solution
- Step 1: Write the proportion equation
11,889,839.89 : 16,408,990.97 = 6,734,118.61 : x - Step 2: Convert to fraction form
11,889,839.89/16,408,990.97 = 6,734,118.61/x - Step 3: Cross multiply
11,889,839.89x = 16,408,990.97 × 6,734,118.61 - Step 4: Simplify right side
11,889,839.89x = 110,500,091,462,398.97 - Step 5: Solve for x
x = 110,500,091,462,398.97/11,889,839.89 - Step 6: Final answer
x = 9,293,656.81
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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.