Finding the Fourth Proportional to 13,325,072.84, 18,388,596.66 and 7,213,496.84
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Solution
The fourth proportional to 13,325,072.84, 18,388,596.66 and 7,213,496.84 is: 9,954,623.55
Step by Step Solution
- Step 1: Write the proportion equation
13,325,072.84 : 18,388,596.66 = 7,213,496.84 : x - Step 2: Convert to fraction form
13,325,072.84/18,388,596.66 = 7,213,496.84/x - Step 3: Cross multiply
13,325,072.84x = 18,388,596.66 × 7,213,496.84 - Step 4: Simplify right side
13,325,072.84x = 132,646,083,898,944.55 - Step 5: Solve for x
x = 132,646,083,898,944.55/13,325,072.84 - Step 6: Final answer
x = 9,954,623.55
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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.