Finding the Fourth Proportional to 13,528,284.56, 18,670,207.68 and 7,417,894.04
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Solution
The fourth proportional to 13,528,284.56, 18,670,207.68 and 7,417,894.04 is: 10,237,338.05
Step by Step Solution
- Step 1: Write the proportion equation
13,528,284.56 : 18,670,207.68 = 7,417,894.04 : x - Step 2: Convert to fraction form
13,528,284.56/18,670,207.68 = 7,417,894.04/x - Step 3: Cross multiply
13,528,284.56x = 18,670,207.68 × 7,417,894.04 - Step 4: Simplify right side
13,528,284.56x = 138,493,622,275,034.22 - Step 5: Solve for x
x = 138,493,622,275,034.22/13,528,284.56 - Step 6: Final answer
x = 10,237,338.05
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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.